People in college aren't children, at least not in the eyes of the law.If you're talking about CRT, that has nothing to do with teaching about slavery. It is a way of indoctrinating children by teaching them that white privilege is built into every aspect of society and that the only way to atone is to reject capitalism and many of society's tenets.
Actually, it is at odds with Marxist thought. Because it recognizes that racism benefits the lower classes in a way that capitalism doesn't, and harms Marxist ideas because of that divide in thought and by overlooking class as a whole.
The truth is, you wingers fear white supremacist conservative/religious indoctrination will be crowded out by a factual examination of our society and its real history.