They went from slavery, to Jim Crow, to Affirmative Action, to the current welfare state where their heads are stuffed with race-based Marxism. Each with its own style of chains.

Ironically the Jim Crow period was likely the freest and most successful time for Blacks, because it was not imposed uniformly and some could escape it in search of genuine freedom. Unfortunately, rather than simply ending Jim Crow and letting the Blacks experience freedom uniformly, our government stepped in with Affirmative Action to put them back in chains.