Women are paid about 1% more than men for the same job once you control for hours worked (and the difference is attributable to more education).

Traditionally the surplus males were sent to die in wars. Now that war doesn’t require so many bodies who knows what to do with them.

We don't have a surplus of men, we have a lack of men: there are not enough highly educated and high earning men for all the women that want a superior men to them (the definition of hypergamy). You cannot find a partner for the 60% women in college, there are just 40% men and dropping.

The West already committed suicide in the 1990s when fertility rates plummeted. There aren't enough women in reproductive age today to keep the age pyramid from getting inverted. We're putting a band aid on it with mass immigration but the same thing is happening everywhere including Africa.

Yes, overpopulation is a problem, but an overpopulation of 60+ year olds is even worse.

This is like trying to stop a car driving off a cliff by driving into a tree.