The woman is intimately aware that sex leads to pregnancy, so shouldn't women be the ones that stay away from men?

Especially since biology dictates pickiness from women and women are less driven to be sexual like men are in their youth.

I'd argue that women are MORE at fault because the biological desire to spread seed is far stronger in men than women for this exact reason. Men don't often think when all they can think about is laying with a woman.

But that desire has NOTHING to do with children, but the act of sex that will lead to children. The male desire for sex is a function of reproduction, but has nothing to do with "omg I need to make babies right now." It's "omg I need to get some right now."

That's not how male sexual desire works.

Women are much different, don't share the same level of drive that we do, and are designed to be picky.

So when you get with a man that then leaves you, that's actually YOUR fault, not his.