They had themselves sterilized early in life so they could sleep around in their 20's...

I hadn't thought about that as much as "the pill" which worked wonders to slow down impregnations. Or the abortions of course. Sterilization I'm sure is in the mix significantly too.

China is currently running programs to stimulate family formation again and baby production but I haven't drilled down on that story, just watching headlines. Russsia is trouble too as well as Japan, on demographics. The women you're talking about likely were brainwashed into it by culture in schools, books, movies, etc. ... because the 1950's style barefoot and pregnant in the kitchen type thinking was tossed out without discussion.

I think the phenom was part of a globalalist communist campaign to depopulate the planet, as has been the covid injections, and currently the blowing up of food production plants and "zero" carbon efforts. The women who did tubal ligation are victims of the larger plot to depopulate the earth, Georgia Guidestones style, and Deagal style. It's working!