People can't chose who they are attracted to. The reason why a lot of them become so despicable is because they aren't able to get help. Of course I condemn anybody who rapes a child etc, but some people are attracted to kids, and honestly I think helping them out and making them not act on their impulses instead of treating them like monsters would do more good. Computer generated "child porn" is harmless, but of course it's a slippery slope and I understand where you're coming from. In my eyes it's kind of like how gay people were treated 40 years ago.
I'm not a pedophile or anything, nor do I know anybody who is. I am not defending child rape or abuse of children, I think it's disgusting too and they do deserve to be punished.