Exactly! And there's quite a bit of research to indicate that if women feel physically and emotionally safe, and like they won't be judged or slut-shamed, they are just as "randy and promiscuous" as men - maybe even a little more so. Women even get bored with monogamy before men do. Besides turning a blind eye to other factors that may be impacting any given sociological situation, these types completely disregarding the vast changes brought about by both the agricultural and industrial revolutions. It's creating a scientific-seeming framework for what are essentially preferred social narratives by disregarding anything that explains other possibilities.