Well, some people might exclusively watch POV / VR porn, because it's filmed as if you were the guy in the video. Others may skip through to reverse cowgirl scenes, where the guy is basically hidden behind the girl.
I mean, the sex scenes in most games are shown from a third-person perspective. If someone really can't get into anyone but themselves having sex with the girls, they must have a remarkable (or delusional) ability to consider the MC as themselves (I can see how a name change can help, but the MC in this game is pretty obviously of East Asian descent, and I'm not so sure that's the primary market for the game).