It would indeed be hard to argue that there are not genetic differences between people of different sexes.

It does not, however, follow that all perceived differences in behavior between gender groups are genetic at root. It would be rather dishonest of me to say "men in the US like trucks, therefore liking trucks is embedded in the male geneome" without considering that there could be a societal aspect to that behavior.

Genetic differences may be facts, but blindly assigning genetic causation to perceived behavior without completely ruling out other possible influencing factors is just bad science.

Hey, the Twilight Zone was always my favorite show. It's a place between mystery and imagination, a place where the laws of reality are bent, a place where people arbitrarily start thinking you said genes don't exist.

Genetic differences are facts, but if you think that our understanding of what they imply about society is factual, you simply don't understand science.