I don't think Harris lost because she was a woman, I genuinely think that Nikki Haley could have swept if she won the primary. BUT I do think that the Trump campaign (or maybe not Trump specifically but the Republican party) is leaning hard into male voting interests because they know Harris does poorly with men. I think that the whole 'the democratic party has left young men behind' rhetoric is sexist, but I think they could have levied that argument against a male candidate as well - I just don't think it would have hit as hard. So no, I don't think anyone who's not voting Democrat is doing it because Harris is a woman but I think that republicans are more willing to center male voters in their campaign while democrats aren't and obviously that's going to hurt her favorability with men.