"The civil rights movement triggered massive rioting by the blacks, followed by urban blight and rampant drug use all across the US during the 60s and 70s."

Right, that's all the fault of African Americans seeking their rights as citizens of the USA.  They should have just kept with no ability to vote, drank from the other water fountains, put up with the occasional lynching and stayed in their place.  Quite the "tell" your statement there....