The whole thing is ridiculous. BLM wants "reparations" for people held in slavery 150 years ago, but they totally ignore the fact that there are hundreds of thousands of people being held in slavery right now, at this very moment, all over the world.
Why don't they care about slaves today? Because they can't get "reparations" over enslaved people today. They don't give a hoot in a high wind about who's held in slavery; what they want is money. The whole thing is a shakedown game to get freebies out of guilty white liberals.
Couple that with the cockeyed idea they have that if Whitey was out of the way, Lo, the land would bloom, oppression would cease, greed would vanish, love and brotherhood would abound, and hot home-cooked meals would simply float down from the sky and be cheerfully shared by everyone. There would be no war or crime or hate, because Whitey is the one who causes all of that.
They want to wipe the world clean of everything that Western Civilization (read: Whitey) has accomplished over the last 5,000 years, because if it came from Whitey, then it's colonial, oppressive, genocidal, racist, and hates puppies; which would place the world approximately where it was right about the tail-end of the last ice age, when people were living in drafty huts made of twigs, wearing the skins of dead animals, and walking hundreds of miles every few months to follow migrating game herds.
They let their anger and their prejudice and, yes, their jealousy talk for them, without ever stopping to reflect what the outcome would be if they ever actually got their way. They're very idealistic, but they're not very bright.