There are 2 ways to take over a country. One is through armed conflict and it's fast. The other is much slower, more methodical, and precisely what we have witnessed in America in the last century. It didn't start with the children, but the fact that it's now front and center with kids is even more damning.
socialism
There's an old saying that goes "Those who don't learn from history are condemned to repeat it" (paraphrase). On the subject of RACE, that is most assuredly us. Every time we start to go down the right path, we get bumped off it and back into negative, self-destructive behavior by people who have a vested interest in seeing us perpetually divided.