I don't think a simple demographic analysis explains the full story. You have to look at culture (education, mass media, tradition), the legal system as well and even then it's not always easy to discern what is cause and what is effect.
Take one example: in New Zealand, there is an oversupply of women in their prime marriageable years due to the fact that more more young men than women go overseas to work. Yet the young Kiwi women don't compete to look good and behave agreeably in order to snag the remaining men; instead, for whatever reasons, they are among the frumpiest and most masculine women in the world. Compare Russia where there is also an oversupply of women, but the result is the opposite.
So why is it the Anglosphere women are the worst? A related question - why are people from USA, UK, Australia and New Zealand (along with Mexico) the fattest on earth? I haven't heard a completely convincing explanation for that either.
Take one example: in New Zealand, there is an oversupply of women in their prime marriageable years due to the fact that more more young men than women go overseas to work. Yet the young Kiwi women don't compete to look good and behave agreeably in order to snag the remaining men; instead, for whatever reasons, they are among the frumpiest and most masculine women in the world. Compare Russia where there is also an oversupply of women, but the result is the opposite.
So why is it the Anglosphere women are the worst? A related question - why are people from USA, UK, Australia and New Zealand (along with Mexico) the fattest on earth? I haven't heard a completely convincing explanation for that either.
Dr Johnson rumbles with the RawGod. And lives to regret it.