It was less than 50 years ago that an official and "legal" system of apartheid was in place in many places in the US.
And of course there were many unofficial enforcers of this system. The KKK for one, but also every racist redneck who took it upon themselves to "keep those people in their place".
These people. Kids. Imagine growing up in such a system?
It was only by force of the Federal Government (thanks Ike and LBJ!) that American apartheid ended. But oh, does it live on, unofficially, and make no mistake: The Republican Party of today is the political party actively pursuing the same goals - keep those people in their place.
A bonus today, of course, is lots of people can be those people. All the poor, for example. Yay, Republicans!