Notice how these leftist, Marxists take this situation and twist it around to say that anyone who disagrees with their narrative is a white supremacist.
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The disaster of multiculturalism in South Africa and Brazil for example which are some of the most violence place on earth. Next to the USA with the most guns and most people incarcerated in the world.
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There are a lot of people (who are not white supremacist) who are simply saying that want to preserve their culture and live in uniformed, harmonious place not flood with every culture on the planet and told that we are all the same. 
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Very few of the people who immigrate to Canada or the USA believe in the Marxist narrative, only as far as they want free stuff they will agree but back in their country they make no apologies for blatant racism and nationalism. In Asia for example there is the caste system which is an old system of discrimination which nobody questions and guess what white people are at the bottom, way at the bottom.