As Carlson pointed out, the left openly gloats about their plan to replace the population of this country all of the time, but when anyone criticizes it they become a 'white supremacist'.
Many leftist flacks, comedians, and various gadflies have publicly cackled about the time when (in about thirty years or so) whites become a minority in America. Then they, whites, will get theirs.
Oh, really? What do they expect will happen if and when that occurs? Whites will meekly surrender their wealth and possessions to minorities? Highly doubtful.
I won't be around, but I sincerely doubt things will change much. Unfortunately for some of the demographics IQ is a real thing. They won't be able to run things without the help of Evil Whitey.
I don't see a S Africa situation since Hispanic-Americans might be larger demographic than black Americans. And they won't care about the terrible legacy of slavery and discrimination that blacks whine about constantly. They'll be in for a rude shock in their struggle for power.