I have serious ethical concerns with such a claim. It gives a simplistic view of history, to the point of severe distortion.
It implies that all women terribly oppressed, while all men had lives of unrelenting leisure. That's simply not true.
What is true is that the Mesopotamian civilizations were violent, hierarchical, racist, genocidal, poor, etc. Many men were slaves, killed in wars, or beaten to death by the rich. Calling a society that treated women poorly "misogynistic" is like calling the USA a "technological" society. Well, it mostly is, but you could also call it an oligarchy, capitalistic, and sometimes democratic. No one sweeping term is accurate.
The Biblical story of Esther shows that women were valued, and had significant "behind the scenes" power.
I would even venture to say that there are no human societies, ever, where women were utterly powerless. Such a society would quickly collapse.
> ... but because of the male-oriented power dynamics that clearly dominated most ancient societies.
As opposed to our society, where most politicians and business leaders are male?
As for why this happens, see:
http://www.comparativecandidates.org/sites/default/files/Eng...
Once we take into account incumbent advantage – where more men are incumbent - the ratio of elected women is about the ratio of the female candidates. When we model candidate success measured as the number of preference votes for individual candidates we do not find that women receive fewer votes than men on party ballots either.
Maybe men just prioritize competitiveness more than women do. And for some strange reason, people who are competitive out-compete people who aren't competitive.