"If you think rape is okay, I think you're a waste of skin"

I disagree - in the same way that I disagree with capital punishment. You may be scum, and hold some of the most repugnant beliefs out there (essentially, saying rape is ok is saying women are objects), but you're still a person, albeit a small and mean little one - and it's up to us, people who are, y'know, sane - to educate these mean, little people about what being human really means.

And hopefully, when we do that, they'll look back on earlier statements and baulk at their callous folly.