Ok fine I’ll just tell you why Multiculturalism doesn’t work and will never work:
Culture is about a set of rules. Rooted in symbolic language. Norms and anti-norms. The ‘way to be’ is more than understood, it is deeply known, and most importantly, felt. In-group members FEEL like members. The out group FEELS like outsiders.
Now when you mash up a bunch of people from a bunch of different cultures, you have different languages, different symbols, different understandings of norms and anti-norms, no one knows how to ‘be’ and no one feels belonged.
So what happens? Central authorities start to create a set of rules using legal and political authority backed by threat of enforcement. The more multi-cultural, the more rules-of-law that are required; the more ‘multi cultural social scaffolding’ gets created. No one feels it, no one knows it.. people sort of, for the most part, understand it.
But I’m sure you can see the problem, the more groups of people you get, the more languages, the more cultures, the more and more difficult it becomes to create this legal/political/social scaffolding, eventually the bureaucracy required to hold the thing together becomes all consuming, the society collapses and the ‘edge cases’ are the reason.
Modern liberalism loves multiculturalism because it requires more and more centralized control, more government and law enforcement. More rules. More money, more taxation… you get the point.
It has never worked. It will never work. We are at the tipping point. The outcome is when, not if.