Diversity has it's limits, and it's not universal.
Some cultures are more compatible with a type of diversity than others, us Latins have always been a salad of everything, in fact, it could be said that the Roman Republic created multiculturalism in a successful civilized enviroment.
We are fundamentally better prepared to truly asimilate with people that want to integrate from Middle Eastern and East Asian cultures, we haven't ran the test with Afrikans yet but i'd lean towards positive.
Germanic people however, are vastly different in this regard, they've always had an obsession with Genetic purity that can be traced back to 500 B.C , it never stopped, those overrated shitty Vikings...when they were taking women, what do you think that was?
They are authoritarians by nature, when they see some country doing well, better than theirs, and such country has open doors for everyone, Germanics are the peoples that will organize and go to such country in order to try out their redistribution of wealth big government shit, they are largely responsible for turning the French into a bunch of collectivist retards, and they are largely responsible for the Soviet Union's existence.
We simply can't live together.
And Arabs and Afrikans who got brainwashed by U.S absolute dogshit tier culture into believing that they can go to other countries and demand free stuff and victimize themselves, they are just as much of a problem as Germanics.
ps: If you think New Yorkers respect each other you're crazy bro hahahaha