Well, he's being isolated. OK Cupid just cancelled his account and banned him for life, stating "there's no place for hate when you're looking for love."

Sadly, this isolationist retaliation can have no other effect besides forcing him to remain a hateful nazi, as no other group will accept him.
I hope people rethink that, he's not going away just because you wish he would, so the better option is to show him how wrong he is, which requires talking to him.

I'll have to use this trick for my OK Cupid profile pictures