Lots of things were/are found in many unrelated human societies, such as slavery, which was found all over the world for thousands of years and still exists in many places/forms today. Something being common isn’t an indication of whether or not it is intrinsic or “the only way”. We only make progress by challenging social structures and trying to improve them. Perhaps these kinds of commonalities exist all over because they are effective at controlling/enforcing oppression and power.

My point isn’t that men and women aren’t at all different, it’s that institutions use the “it’s human nature and it can’t be changed” argument to hide oppressive/coercive practices that are avoidable and able to be removed.