Males provide the drive for competitive mating in the vast majority of animals.
Females are the gatekeepers who decide whether to mate or not (or their hormones do).
Comparing a guy who'll screw anything to a woman who'll screw anything is unfair. It's more like comparing a guy who has no desire or capacity to mate to a woman who'll screw anything -- which one of that pair would be more ostracized?
I don't know why people pretend that men and women are supposed to be equal when they are so different. Women are better at some things, men are better at others.
I think we all know that stereotypes are there for a reason.
Stop pretending that you can do construction better than a man with that pink hardhat, ladies.
Men, stop plucking your eyebrows.