"Most women" could be replaced with "most people" and it would be a fair statement. The modern western man/woman has become physically weak and lacks the basic skills you'd want in those sorts of situations.
Also, what do you think about a person who says such a thing? Even if he had used most people I think many of us would assume that the author somehow believes that they themselves are not weak — are superior to most everyone else in the Valley.
He has also claimed that many others in the Valley see him as self-deprecating. I sure don't see it in statements like the above.