It's like being at the dawn of the Neolithic age all over again. Back before men knew they had anything to do with reproduction. And we know what happened then, when the guys found out their seed counted.
Ladies, get a clue -- be nice to your brothers. Respect them, stop sleazing around with the low life, clean up your own act, stop blaming men for all your problems, or one day, when guys realize that, statistically, we've got more gripes than you do, the resulting revolution in men's attitudes could be, well, Neolithic.