Evolution is not something that happens to a person but to a group, and who begets who is absolutely, utterly, completely, unimaginably fucking irrelevant, except maybe to the neckbeards who obsess over it in the dark recesses of evopsych. Also the fact that your only basis for the argument is "it's rational" is basically a post hoc ergo propter hoc. It's not. It's also impossible for a hunter gatherer group to have much more than 1 child to an adult as they all must be taken care of.
Post hoc ergo propter hoc says "hi again, you're an idiot". Polyandric societies do exist, and the oldest social organization type known to humanity is not based around kin.
You know nothing about evolution besides pop evopsych. I'm going to bet you read Kanazawa.
Just stop, if you're going to be posting shitty scifi and pretend it's biology/anthropology. The whole thing about birth control is especially stupid, as for the longest time, women would have been unable to have children about 4-6 months of the year at least due to the mode of living being very active and the food rather lean.
Final point, I didn't feel like double posting even if it's in another post of yours: "transhuman" technologies, as a name, is utter bullshit. Changing the nature of gender in its social understanding, which is wrong to begin with as neither gender nor sex are binaries, does not change the fundamental nature of humanity.




