Bympyjonas, I like the way Jamelle Bouie expressed it, and I quote from his newsletter:

“One of the best examples of the reproduction of racial ideologies is, in my view, the way that Jim Crow segregation helped fuel an even more virulent form of anti-Black racism after emancipation and Reconstruction had begun to weaken race hierarchy, however slight and provisional the change was. In other words, a new social and economic order — defined by peonage, labor exploitation and forced separation under threat of violence — strengthened anti-Black racial ideologies and even produced new ones.”