Post Hoc Ergo Propter Hoc
As Thoreau once said, sometimes circumstantial evidence can be quite conclusive, as when you find a trout in the milk.
There have been enough laboratory experiments across the planet comparing collectivist nations with individualist ones to convince all but the most delusional collectivists. Eventually, even the most stubborn scientist has to accept experimental evidence over theory.
But what the hey, I'm just a right-wing dummy. What do I know?
You know, the Left's utter conviction of their intellectual and moral superiority is one of several reasons they will lose the next election.