Multi-culturalism is an insult to all cultures. In essence it is an attempt to reverse all subsequent development, and return mankind to the equivalent of the bizarre humanist experiment at Babel.
Yet I would not be misunderstood. Yes I am disparaging the mental acumen of the dysrons who support the idea that multi-culturalism is progress. It is not.
It's definitely an ideology, with the end of sovereign nation states as its ultimate goal. "Multiculturalism" really means using the culture of immigrants and minorities as a means of erasing the cultures of developed nations.