But again, I don't want to start a flame war, and this isn't really the place to be having this sort of discussion, so I'll leave it here.
So you post something that clearly needs debate and then decline to discuss it? How very productive. ^^
Ignoring the other stuff (which equally can easily be refuted), but a) we're talking about Japan here, and b) look at the stud <-> slut dichotomy, what virginity means for men or women, and at similar issues, and you'll easily see why this is definitely not an issue where women are favored, either in the West or elsewhere ...