God dammit Joel
And that was my point about the hot chick. You don't think about kids, but you're naturally attracted to fit bodies. I wasn't saying they would get away from everything, I just said they would be the most likely to survive.
And as for the Chinese, they probably find everyone attractive there. Maybe that's why it's so overpopulated
There are 2 reasons I can think of for genders:
1. That's the way it's always been, even for plants.
2. It helps prevent bad mutations from being passed on, it prevents overpopulation of the weak, etc.