I think he is ignoring the fact that men have throughout centuries passed laws that did not allow women to own property, get an education, vote, walk outside their house unveiled etc...
Maybe part of the reason that women didn't build boats and sail around the world was because women weren't allowed to own property in many areas of the world, or because women were prohibited from obtaining an education and learning astronomy.
If you can't study astronomy, it's hard to sail around the world. If you can't study medicine, it's impossible to be a doctor or improve Obstetrical care. If you can't own property by yourself, it's hard to build a business. It's hard to be a political leader if you can't vote.
Maybe part of the reason that women didn't build boats and sail around the world was because women weren't allowed to own property in many areas of the world, or because women were prohibited from obtaining an education and learning astronomy.
Certainly, in some cases. But even in cultures where women are granted the same rights as men, certain lifestyles seem to be much more popular with men than with women; hence far more men among soldiers, death row inmates, and Fortune 500 CEOs. In cases where we notice more men than women reaping a specific reward, we ought to at least consider different preferences owing to biological/evolutionary origins.
But I see what you're saying. I would have liked to hear some discussion of the blatant and real misogyny that exists in the world. In fact, I would be fascinated to see an analysis of the situations you bring up, in light of the observed differences in gender attitude and aptitude.