Rise of Patriarchal Society - notes

I was reading this blog post at Pharyngula, then the following research by Mark van Vugt caught my eye.

They also suggest that this imbalance might have evolutionary roots and point to an idea called the male-warrior hypothesis, which states that men have evolved to form strong bonds with other males in their group because in the past this enabled them to defend territory from hostile attackers.

“Men are more ready to cooperate with genetic-stranger males to form these fighting coalitions,” says Mark van Vugt, an evolutionary psychologist at the Free University of Amsterdam who first suggested the theory in 2007.

 I had proposed  in a blog post in 2006 that men bonded at community level and women didn't in our hunter-gatherer past, which was one of the reasons for the rise of patriarchy.

Men -> community; woman -> family

Well, that's what I think. The men formed community and a woman formed a family. During our hunter-gatherer past men bonded but women missed(Are all women individualistic?).

But I'm not making any is-ought fallacy here. I'm not saying women are incapable of bonding but only that it didn't happen in our past and that's one of the reasons for the rise of patriarchy.