I don't think when a single comment on FJ makes the difference between getting married or not a marriage would be a good idea anyways. Or when any number of comments on FJ makes a difference. Especially if peoples only choice of information is FJ they probably shouldn't get married. And if it is enough to make them insecure it might also be a bad idea. One could always wait a bit and choose to do it later i think.
Let him preach his stuff and you can preach your stuff, best thing is to have both sides in the argument.
I have no relationship knowledge whatsoever but i am also doubtful about the whole "you chose a shit wife" thing neccercarily being appropriate. I mean yeah probably most often its the case that one is unaware or accepting of crappy behaviour from the partner but sometimes i guess they are just good actors. Or they change. Can happen to everyone i think its a sensible decision in a relationship to not marry if both agree on it.

Actually that would be each and every country in the EU my friend.

So in perspective. The entire EU compared to California... I'd say California is the country you are talking about in this situation.