Already happening. There was a clear and definite divide I'd say of 80/20.
The 20% made moves and began real change in their lives. I come across them all the time here in Portugal, scattered in small communities of young families from all over the world, Americans, Canadians, French, Dutch, English, German, South African.
All have the same things in common; saw the truth, lost friends and family over it, made moves, changed diet (vegans to carnivore) and started having children, multiple, usually by home birth.
It's like nature is doing it's thing to make sure it continues better and stronger.
The other 80% are lost and mostly unrecoverable unfortunately but such is Darwinism.