Ever wonder what drove segregation?
Ever look at a map of the United States which shows the racial breakdown of various neighborhoods, and notice that even today there are sharp lines in the racial makeup of different neighborhoods? After all, if we go with the theory that people just move anywhere they can, and tend to stick together along racial lines as they are comfortable, there wouldn’t be the sharp lines we currently see. Instead, we’d see diffusion, like paint diffusing in water.
But we don’t. We see sharp lines.
And part of the reason is government regulation: The Color of Law
At the time [immediate post-war era], the Federal Housing Administration and Veterans Administration not only refused to insure mortgages for African Americans in designated white neighborhoods like Ladera; they also would not insure mortgages for whites in a neighborhood where African Americans were present.