Vore

Why.

I honestly, honestly believe we should dispose of all people who have a vore fetish for the good of mankind. I honestly, honestly do.

To spare any unknowing people from looking up what I'm talking about:
"Vore" is the act of eating someone, and that person being just thrilled to serve as food. The point is to get sexually aroused by it. You are a good person if you don't.

But it's good to know who we can eat or sacrifice when the zombie apocalypse starts. At most they'll just get a boner.