The Nazis studied the Jim Crow laws of the US as a model for how to formulate repression of Jews in Germany.

The article also places US racism in a broader spectrum of caste systems.

One thing I dislike about the article is that it endorses bigotry by capitalizing "black" and not "white". I think they should be treated the same. For the most part, I decline to link to articles which do that. I made an exception for this article because I think its point is important.