It's quite interesting that the USSR collapsed in 1991, which removed the biggest external "us vs them" actor.
But on the other hand there are also countless other factors that are going to affect society at scale: rise internet, rise of pharmaceutical psychotropics, surge in obesity, surge in autism, declines in testosterone, apparent reversal of Flynn effect, and more.
With so many things happening it all feels like a Rorschach test when trying to piece together anything like a meaningful hypothesis.
But on the other hand there are also countless other factors that are going to affect society at scale: rise internet, rise of pharmaceutical psychotropics, surge in obesity, surge in autism, declines in testosterone, apparent reversal of Flynn effect, and more.
With so many things happening it all feels like a Rorschach test when trying to piece together anything like a meaningful hypothesis.