There's only so much empirical evidence in the social sciences but what we do know is that around the time of the Agricultural Revolution human beings went from living in small bands that took care of each other as a survival strategy and where there was no centralized power to a highly socially stratified culture, where not only was there a significant power differential between men and women for the first time, but all sorts of other classes which were maintained by intimidation, coercion, and violence. Even in the early part of the AR what leaders there were had very little actual power outside their immediate vicinity. That too shifts as we go into a more male led dominance hierarchy system (patriarchy), where kings and chiefs now have the power to punish and even kill their subjects, as well as others, at their discretion.
Honestly, that is pretty basic mainstream anthropology - something that my friend Elle talks about in a wide variety of short articles. I've learned a lot of this from her but it's also basic stuff. It's not like it's difficult to learn about it if you actually try.
Of course patriarchy is driving the Man Box, because the rules are one and the same and they come very directly out of that history of the social shift from caring about each other to dominating others in order to get what you want for the benefit of yourself, or your own family. But you also have to realize that this is not nuts and bolts, a lot of it is looking at the tapestry and drawing inferences from the elements of that - supported by things like the presence or absence of weapons, where and how people built their houses, what the pottery and art portrays, the fact that Mycenean royalty had better teeth and were three inches taller than their subjects. Chilean mummies from A.D. 1000 had a fourfold lower rate of bone lesions caused by disease than commoners - and things like that.
This article from the World Economic Forum is short but also draws very clear conclusions about how and why things changed.
https://www.weforum.org/agenda/2018/10/how-the-agricultural-revolution-made-us-inequal
