Cultural suicide is not painless. Italy and most of Europe lost too many of its best people from 1914-1945. Emigration, birth control, abortion and the embrace of neo pagan, hedonistic decadence did the rest.
I think you hit upon a key. Good post.
Genetics (despite what many FR here spout) is REAL. Having 2 extreme wars basically 2 gens in a row culled out enough of the genes of what Makes bravery, group cohesion, controlled aggression etc viable in men.
Now most are just selfish (hyper individualism) , leftist, woke cowards.
Ps
And to those who say 2 Gens isn’t enough I say yes IF that was true. Just pick up any history book and look at how many wars Europe had from say 1600-1914. It was the LAST culling.