Good analysis.. Much truth here, PARTICULARLY the "Great Society's" impact on the black community. I think that the Federal legislation was inevitable, given the South's stonewalling.
I'm afraid you're right about the federal legislation, especially regarding voting rights (In the face of the 14th Amendment, I'm not sure that the 1964 U.S. Civil Rights Act had anywhere near the same significance or effect). How much federal mischief could have been avoided, if only people who claimed to be for states' rights had simply respected the rights of blacks, as citizens of southern states?