Commenter Ton recently stated on the Hypergamic Combat thread,
I’ll school y’all up later but hypergamy drove civilization
Men build etc to get the best ass possible because women get wet over the best men.
Let us consider this concept. Hypergamy drives women very strongly to try to find what is perceived as the best man. Men (modern and in times past) do/did understand that women seek this (though perhaps not the ruthlessness of it). And men tried to better themselves due to it. So far, so good.
Men are working in many ways to improve their standing by collecting resources, building skills, improving their status, etc. These activities are mostly good for civilization as a whole. And men had the expectation that they would find a women more or less equal to their overall standing. This has a measure of fairness about it, and it captures men’s drive for a good purpose (at least some of the time).
Now consider the situation of the unrestrained hypergamy of today. Women are totally compelled to go for what they perceive to be the top men. It is aided by taxes and laws; and furthermore encouraged by women as a whole. Men who are not considered to be top men lose out. Other men see this, and lose their drive. Civilization suffers.
So hypergamy does have a role in building civilization, but unrestrained hypergamy is toxic to civilization. Hypergamy is one of those things that should be done in moderation.