So? As you said, "What does it matter?" Those societies didn't survive. I don't really get how to treat the quip "you're looking at thi[s] through the lens of western history", other than as an attempt do disqualify what's literal fact by saying that it was observed by "westerners."
>Besides, what does it matter? We're talking about the future here, not the past. Contraceptive technology isn't going away.
I'm never going to understand this sentiment. "It matters" because, like it or not, evolutionary biology is a thing and attempts to subvert it are introduced at our own peril - at least until we actually have total command of controlling said biology.