Racism is a generational disease. All you need to do is look at family members that are raised in a racist environment. The words, the prejudices, the demeaning family jokes. The children grow up in that environment. And their children grow up in that environment. It goes on for generations, unless education and social awareness finally stops the cycle.
But that will take generations. We were on a good track until trump and MAGA came along. trump has been able to cloak his racism with code words and winks and nods. He is talented at that. Nearly as much as he is talented at Lying.