Reality is always the benchmark for hypotheses and all other assertions. From The Zman at takimag.com:
One of the many excellent uses of reality is that it can be used to test ideological and political theories. No matter how good the idea seems in the lab, the only way to know if it will work is to give it a go in the real world. The best example of this is the seventy-year social experiment called communism. The acolytes of Karl Marx tried to prove that the human condition was nothing more than a social construct.
Granted, reality can be a cruel master. No one really knows how many people Stalin murdered while getting the experiment going. The best guess is tens of millions died under Soviet communism. Then you have the Asian experience. The Black Book of Communism puts the number at 94 million. It is a good reminder that reality can remain stubborn longer than the ideologues can pile corpses.
It looks like the rulers of the Global American Empire are ready to put their favored ideology to the test in the real world. Multiculturalism is pretty much a religion with the ruling classes, despite the fact that most of them live like white nationalists. For them, “diversity is our strength” is not just a marketing slogan. They really think that diversity in all of its forms is the key to creating a global paradise.