Misogyny, 100%- I can forgive, for example, a Diabolik Lovers character saying disparaging things to women, whereas IRL i get quite angry about misogyny.
Yandereisms fall into this as well - I like seeing how a male love interest can abuse their privilege as a man to keep the object of his affections underneath his thumb.
For example, I was super into... Conrad.... from EIT... (controversial, I'm aware) but IRL i'd probably rather die than even be /near/ a man like him. But as a character, he's wonderful - an interesting narrative device AND an interesting character.
And he's attractive, of course, in a way only 2D men can be ...