tbh, I kind of suck at describing what I'm experiencing.
No sensory ghosts, no hallucinations, though I'm feeling slightly constricted in my lungs. I'm also acutely aware of my own body. My lips feel weird, my scalp is sort of tickling itself, and my knuckles constantly feel like I need to crack them. Aside from those mild discomforts and not being able to form cohesive thoughts, it's pretty nice. It sort of draws your attention inward, so you can't really focus on anything other than how you feel physically.
To put it bluntly, it's like being a little stoned. You're still fully aware of everything, but you can't really divide your attention effectively, and you feel different from normal.

in short omega level mutants can take on cosmic beings

It depends on the entity. If we're talking about something like the Living Tribunal, no. Same with the Celestials and the Beyonders.
Omega-level mutants are insanely powerful, but cosmic entities typically have more power than any human can comprehend. Galactus is pretty much the only cosmic entity that can be defeated in a conventional fight, mostly because the Power Cosmic he draws on is also what keeps him alive (this need for the Power Cosmic is also what makes him need to consume planets). Galactus still outclasses literally every Omega-level mutant, but defeating him without warping reality is still possible.
The Beyonders, on the other hand, warp reality to their will. They also exist outside of the multiverse. Defeating one in normal circumstances is literally impossible. This is where we would need someone beyond Omega-level; someone capable of breaking the fundamental laws of reality.

Nope. Brother. Specifically, one of his two younger brothers. His other brother is Vulcan, who's completely and utterly overpowered. He's one of few mutants to be declared to be beyond Omega-Level. Now, just to give some background, Omega-level mutants are those who are capable of destroying an entire world with little effort. These are guys like Jean Grey, whose telepathic and telekinetic powers have literally no upward limit, and Gambit pre-lobotomy, whose power would have granted him the ability to control the kinetic energy of any object or objects.
Characters classified as beyond Omega-level are those like Franklin Richards, who is capable of changing fundamental laws of reality and creating universes. These are guys who can stop cosmic entities such as Galactus single-handedly (Franklin Richards actually made Galactus his bitch. Galactus now obeys Franklin Richards).
But I'm getting off-topic here.
tl;dr: Saying the new movies fuck up a lot of information is like saying the Fantastic 4 movies were bad: it's obvious to anyone who pays attention, and it's a massive understatement.

in short omega level mutants can take on cosmic beings

It depends on the entity. If we're talking about something like the Living Tribunal, no. Same with the Celestials and the Beyonders.
Omega-level mutants are insanely powerful, but cosmic entities typically have more power than any human can comprehend. Galactus is pretty much the only cosmic entity that can be defeated in a conventional fight, mostly because the Power Cosmic he draws on is also what keeps him alive (this need for the Power Cosmic is also what makes him need to consume planets). Galactus still outclasses literally every Omega-level mutant, but defeating him without warping reality is still possible.
The Beyonders, on the other hand, warp reality to their will. They also exist outside of the multiverse. Defeating one in normal circumstances is literally impossible. This is where we would need someone beyond Omega-level; someone capable of breaking the fundamental laws of reality.

so you know once again the comic people didn't think of that, didn't care, etc.

The wikia page was about the Earth-616 (aka, mainstream Marvel continuity) Xavier. He's a telekinetic in the mainstream continuity.
Also, in the original X-Men movie, he moved the push-pin diagram to make various models, including a city. This was done without the diagram being connected to anything, meaning he was moving it with his telekinetic abilities.
He also moved his normal, non-motorized wheelchair without the use of his hands or any additional assistance. Additionally, his hands were in his lap when he was moving his fancy, futuristic wheelchair. Since he's paralyzed from the waist down, this means he either moved the chair itself or operated the controls for movement with his mind.

The newer movies fuck with a lot of stuff. For example, Havok, the guy who does the energy waves, is supposed to be the younger brother of Cyclops. There's no way in hell he'd ever have met a young Xavier.

Nope. Brother. Specifically, one of his two younger brothers. His other brother is Vulcan, who's completely and utterly overpowered. He's one of few mutants to be declared to be beyond Omega-Level. Now, just to give some background, Omega-level mutants are those who are capable of destroying an entire world with little effort. These are guys like Jean Grey, whose telepathic and telekinetic powers have literally no upward limit, and Gambit pre-lobotomy, whose power would have granted him the ability to control the kinetic energy of any object or objects.
Characters classified as beyond Omega-level are those like Franklin Richards, who is capable of changing fundamental laws of reality and creating universes. These are guys who can stop cosmic entities such as Galactus single-handedly (Franklin Richards actually made Galactus his bitch. Galactus now obeys Franklin Richards).
But I'm getting off-topic here.
tl;dr: Saying the new movies fuck up a lot of information is like saying the Fantastic 4 movies were bad: it's obvious to anyone who pays attention, and it's a massive understatement.

in short omega level mutants can take on cosmic beings

It depends on the entity. If we're talking about something like the Living Tribunal, no. Same with the Celestials and the Beyonders.
Omega-level mutants are insanely powerful, but cosmic entities typically have more power than any human can comprehend. Galactus is pretty much the only cosmic entity that can be defeated in a conventional fight, mostly because the Power Cosmic he draws on is also what keeps him alive (this need for the Power Cosmic is also what makes him need to consume planets). Galactus still outclasses literally every Omega-level mutant, but defeating him without warping reality is still possible.
The Beyonders, on the other hand, warp reality to their will. They also exist outside of the multiverse. Defeating one in normal circumstances is literally impossible. This is where we would need someone beyond Omega-level; someone capable of breaking the fundamental laws of reality.

... That explanation makes no actual sense. If his legs are paralyzed, the nerves in his legs aren't functional. This means he couldn't be experiencing leg pain, as no functional nerves means no nerves to transmit pain signals.
I'd keep going, but I'm losing lucidity due to the DHM kicking in.

tbh, I kind of suck at describing what I'm experiencing.
No sensory ghosts, no hallucinations, though I'm feeling slightly constricted in my lungs. I'm also acutely aware of my own body. My lips feel weird, my scalp is sort of tickling itself, and my knuckles constantly feel like I need to crack them. Aside from those mild discomforts and not being able to form cohesive thoughts, it's pretty nice. It sort of draws your attention inward, so you can't really focus on anything other than how you feel physically.
To put it bluntly, it's like being a little stoned. You're still fully aware of everything, but you can't really divide your attention effectively, and you feel different from normal.

Two simple answers:

-Why HIDE what makes you different if you're trying to encourage a bunch of scared young mutants to EMBRACE what makes you different? That seems like it would be very hypocritical and give your students the wrong message when they found out you were using your mutant powers to look MORE normal while you tell them it's okay to look LESS normal.

-It might be quite painful for him to manipulate his body that way. Even if he does not have sensation in his legs, 'walking' pulls on the muscles in the core and lower back near his injury. The story for his paralysis varies a bit, but most were traumatic injuries that would likely have left him in a great deal of pain.

sure but focusing on one thing makes it harder for him to focus on another, since he got the chair when he was younger it's logical to think he had to focus on the task at hand and as his focus and scope of his power increased he may have made the change but perhaps chose not to so that he could possibly obtain greater heights, also there's the whole the comic writer never thought of that and maybe wanted to show that even disabled peeps could be superheroes so as to promote some social stigma thingy.

He's written as being a genius. That is literally a part of his character, as much as being a mutant telepath/telekinetic is. He may have gotten put in the chair at a young age, but that was well after he had developed his powers to the point where he could move objects at least as large as he is with very little effort.
I acknowledge that sitting in a chair takes less effort than remembering to remain standing, and I recognize that the act of standing up takes conscious effort, but after a few hours of continuous standing, you forget you're standing up. It becomes a normal state of being, and, while you are using some effort to remain standing, you aren't consciously exerting that effort. For a telepath with as much control over his power as Xavier has, using telekinesis to keep something in place (e.g., standing still through use of telekinesis) takes effort to initiate, but maintaining it can be done without conscious effort.
The other reasons make sense, but they aren't in-character reasons. They just show the actual reason, not an in-universe justification for the behavior. I'm interested in why Charles Xavier justifies using a wheelchair, not why the writers have him stay in the wheelchair.

so you know once again the comic people didn't think of that, didn't care, etc.

He's telekinetic. He moves his wheelchair via telekinesis, and used to frequently use it to test the abilities of the other X-Men. He doesn't use it as frequently now (he may have put a mental block on his own telekinetic ability), but it's still a part of his power set, and all of his clones have both had and used it.
marvel.wikia.com/wiki/Charles_Xavier_%28Earth-616%29#Powers

The wikia page was about the Earth-616 (aka, mainstream Marvel continuity) Xavier. He's a telekinetic in the mainstream continuity.
Also, in the original X-Men movie, he moved the push-pin diagram to make various models, including a city. This was done without the diagram being connected to anything, meaning he was moving it with his telekinetic abilities.
He also moved his normal, non-motorized wheelchair without the use of his hands or any additional assistance. Additionally, his hands were in his lap when he was moving his fancy, futuristic wheelchair. Since he's paralyzed from the waist down, this means he either moved the chair itself or operated the controls for movement with his mind.

The newer movies fuck with a lot of stuff. For example, Havok, the guy who does the energy waves, is supposed to be the younger brother of Cyclops. There's no way in hell he'd ever have met a young Xavier.

Nope. Brother. Specifically, one of his two younger brothers. His other brother is Vulcan, who's completely and utterly overpowered. He's one of few mutants to be declared to be beyond Omega-Level. Now, just to give some background, Omega-level mutants are those who are capable of destroying an entire world with little effort. These are guys like Jean Grey, whose telepathic and telekinetic powers have literally no upward limit, and Gambit pre-lobotomy, whose power would have granted him the ability to control the kinetic energy of any object or objects.
Characters classified as beyond Omega-level are those like Franklin Richards, who is capable of changing fundamental laws of reality and creating universes. These are guys who can stop cosmic entities such as Galactus single-handedly (Franklin Richards actually made Galactus his bitch. Galactus now obeys Franklin Richards).
But I'm getting off-topic here.
tl;dr: Saying the new movies fuck up a lot of information is like saying the Fantastic 4 movies were bad: it's obvious to anyone who pays attention, and it's a massive understatement.

in short omega level mutants can take on cosmic beings

It depends on the entity. If we're talking about something like the Living Tribunal, no. Same with the Celestials and the Beyonders.
Omega-level mutants are insanely powerful, but cosmic entities typically have more power than any human can comprehend. Galactus is pretty much the only cosmic entity that can be defeated in a conventional fight, mostly because the Power Cosmic he draws on is also what keeps him alive (this need for the Power Cosmic is also what makes him need to consume planets). Galactus still outclasses literally every Omega-level mutant, but defeating him without warping reality is still possible.
The Beyonders, on the other hand, warp reality to their will. They also exist outside of the multiverse. Defeating one in normal circumstances is literally impossible. This is where we would need someone beyond Omega-level; someone capable of breaking the fundamental laws of reality.

He's an Alpha-level telekinetic, though. That means he can exert minor telekinetic power continuously without any real effort. It'd be about as strenuous for him to remain upright through telekinesis as it would be for me to remain standing through use of my legs.
I could see the wheelchair making sense if he took an active role in the fights in the various comics, but any time the X-Men get into shit, Xavier's either out of the picture or he's giving orders. He doesn't actually get involved in the fight, which means he's not going to put any additional stress on his telekinetic powers, as his telepathy is as strenuous as just thinking in someone's direction.

... That explanation makes no actual sense. If his legs are paralyzed, the nerves in his legs aren't functional. This means he couldn't be experiencing leg pain, as no functional nerves means no nerves to transmit pain signals.
I'd keep going, but I'm losing lucidity due to the DHM kicking in.

tbh, I kind of suck at describing what I'm experiencing.
No sensory ghosts, no hallucinations, though I'm feeling slightly constricted in my lungs. I'm also acutely aware of my own body. My lips feel weird, my scalp is sort of tickling itself, and my knuckles constantly feel like I need to crack them. Aside from those mild discomforts and not being able to form cohesive thoughts, it's pretty nice. It sort of draws your attention inward, so you can't really focus on anything other than how you feel physically.
To put it bluntly, it's like being a little stoned. You're still fully aware of everything, but you can't really divide your attention effectively, and you feel different from normal.

That's not just porno comics, that's shit-tier porn in general.
You know, the kind that has absolutely no real plot beyond a lucky Joe Everyman getting some from an above-average woman.

Actually, the majority of the time, it's either implied or outright stated that either they were already in or in the process of forming a relationship, or that one of the characters (usually the woman) had hidden romantic feelings toward the other; sex in these comics tends to happen in a completely consensual setting, and both characters choose their actions. If the guy complies with the girl's request, it's because he didn't feel that to be a bad decision.

That's not just porno comics, that's shit-tier porn in general.
You know, the kind that has absolutely no real plot beyond a lucky Joe Everyman getting some from an above-average woman.