It's cultural Marxism as Wynona said here. Racism is the new class issue. Listen to any person who previously lived in an era where the communist regime started to take over their home countries, or who grew up listening to those stories from their surviving relatives, they'll tell you they're alarmed with current trends on the Left in America because it reminds them of Cultural Revolutions that led to a communist state. Some names to consider are Lilly Williams Tang, Konstantin Kisin, and Xi Van Fleet are three that come to my immediate mind. There are plenty of others you can find cited in books like Rod Dreher's Living Not by Lies: A manual for Christian Dissidents in which he does this very thing and talks to plenty of people who lived in ex-communist countries across the globe, but mostly in Europe and Central Asia.
The other side of this, is that for Democrats it's a way to secure the Black vote. Scare blacks, and I'm black by the way, but scare us into thinking Republicans are and support racism, and we all vote Democrat like the black community has for the past several decades. A black person like me thinking outside of that gets called names by both Blacks and White Liberals, some of which the letter resort to slurs they claim the other side are known for. Look at how they reacted to Black Conservatives like Clarence Thomas.
The other side of this, is that as you've seen it weakens conservatives across the globe (for those who aren't lefties, but not equivalent to the US conservatives). Labelling them the dreaded "racist" makes them start to pull back on their approaches a little and afraid to stand strong for certain principles like crime, etc. And I'm not trying to say all of the systems are perfect, they're not, but when you muddy the water with an issue like potentially unnecessary police shootings by making it all about race, you've entirely missed the point and let yourself be brainwashed by legacy media mantra and political agendas. While sure, you can find some things BLM achieved in the justice system, you also have to question if all of those achievements are necessarily good overall. For example, the whole "defund the police" movement and calling all cops racist movement resulted in police pulling back law enforcement and some leaving the job to which communities that relied on police patrolling the areas to curb actual crime, and many of these communities that are black, suffering at the end of it all. Many in these communities did not appreciate for the BLM movement to speak so broadly for all black people because they wanted police in their community since they knew their communities best and knew that crime would grow without police. But that's what the race baiting mantra achieved and here we are.
I also know that it keeps us (blacks) down. In yesteryear we used to have some accountability. Dealing with the problems in our areas. Telling our youth to stop the violence, etc. For the past few years, there was very little of that and the grand scale was about "racist White people" and how everything was their fault to the degree that accountability for what we did wrong was frowned on or swept under the rug. CRT teaches a bunch of nonsense and 1619 teaches a bunch of revisionist history. You want to teach actual history in which black people participated, cool, fine, do that, but teach it accurately. Don't sugar coat anything. Admit that black people owned slaves, some didn't want abolition, and Africans sold Africans to Europeans, Americans, and Arabians among other things and we're good to go. Stop teaching us and manipulating us and indoctrinating us into the false belief that we're a special oppressed class of people when nearly ever people group across the globe had something bad happen to their ancestors, often time because of other human cruelty and evil.
But what bothers me most is when Christians fall for this deception and end up embracing cultural Marxist nonsense, CRT, and the current trend of racism disguised as anti-racism.