No one has mentioned "The Color of Law" yet, so here it is: https://amzn.to/2IjeIhi https://amzn.to/2IjeIhi It's an entire book dedicated to this hypothesis,

No one has mentioned "The Color of Law" yet, so here it is: https://amzn.to/2IjeIhi https://amzn.to/2IjeIhi It's an entire book dedicated to this hypothesis, with a bunch of evidence. It's difficult reading because it pisses you off to hear about how horrible people were (and are), but it's a very good book.