I never thought anyone would try to defend having a mono-white cast, especially in a world where there are plenty of non-white people, but here you are.

Yes, but sex has its role in the style of The Witcher franchise since long before the video games. Depicting nudity is hardly an issue of sexism on its own.

You may want to actually play the game. Because there is no “harem” and little to no discernible sexism on the developers’ side — there is some sexism in the story, because it happens to be set in a world that is shitty in wide variety of ways, but that’s not what you’re after, is it?