Two problems with this.
One is that rape only looks misogynistic if you're only considering male-on-female rape. However there's also male-on-male, female-on-male, and female-on-female rape, both in real life and in fiction. The assumption that all rapists are male and all victims are female is itself sexist.
The other one is that for people who actively fantasize about rape, as opposed to opportunistic rapists in the real world, dominating and humiliating a real person is very much part of the fantasy. It's not that these people don't see their victims as human, it's that they get their jollies by sexually dominating another human being. And frankly I'd rather that they play out their fantasies in a game than in real life.