That assumes nuclear families raising children under capitalism - that's a culturally specific western view of the past maybe 200 years. There's many other modalities over the entire globe and 250,000 years. The premise and the conclusion of your statement is unsupported unless you can demonstrate those assumptions consistently holding in most societies over a quarter million years.
Now you're assuming there's a social hierarchy where someone can exercise sexual indiscretion as some kind of reward and where the social customs encourage such a behavior, which also must be demonstrated. Again, if we aren't talking about hard biology like menopause, puberty, fertility and stillbirth rates, things get dicey. Things can dip into eisegesis quickly.
One were women were treated as sexual resources to be taken and controlled
Another with more free will.
In both cases, sexual selection would lead the offspring of those that aligned with the dominant male and his group, through free will or coercion, to have greater survival odds due to the dominant male's ability to control or capture resources, or fend off danger.
If you're aware that a majority of stone-age societies practiced communism without hierarchies for several tens of thousands of years to offset this sexual selection, I'd be interested to hear about that period of history.
Regardless what you think of the text, even the most stubborn critics agree the classical claims lack critical support.
You don't have to assume communism. A world requiring lots of labor to do basic things with lots of diseases and death being common is alien to us. I don't realistically need to worry about wild animals, water access, food availability, or succumbing to unfortunate weather.
DNA studies show that human population may have been as low as 2,000, on the brink of extinction 70,000 years ago.
This time period is so vast we're talking neanderthals and a bunch of other hominids.
It's a wildly different structure. There was lots of diversity. I assumed no social structure in my claims and showed that regardless of social structure, that pattern would arise as an artefact of the biology of childbirth.
If you can demonstrate the delta is larger than biologically expected, then you have something to back structural claims. But that's you know, actual academic work that would take a month or twenty. We aren't going to resolve that here. The childbirth argument was the easy one.
