I am full of resentment and seething anger towards the world because my life is shit and I feel utterly powerless in general.
As a result, I don't much care for "nice" or "cute" and the idea of "wholesome" automatically make me extremely angry because I can only think of "Western" society's oppression of marginalized groups (homosexuals or people of different cultures or color) when the word comes up.
Same for romance. All I know of love is to hate other people for being lucky enough to experience it.
See, the great things you love are quite easily hated by others.
I know well enough that the horrid, brutal and relentlessly unforgiving media / themes in media I am so enamored with disgust most people. I'm not even talking about violence (or at least physical violence), but I am drawn to depictions of mental anguish and existential dread because that is what I can sympathize with, I guess. So I like shit like Roadside Picnic, or Blood Meridian (okay, "like" may not be the right word in that case) or No Country for Old Men (not because of the cattle gun, because of Tom Bell and his little dream). Or Death is my Trade. Or Malevil. Or L'Isle. Fucked-up, disconcerting, uncomfortable things.
It's all just a matter of what preferences you have, really. But nothing is "sacred" or off limits, especially when it comes to hatred.