-Blacks gaining the right to eat in any restaurant they want
Oh, you mean those laws that were limited to the Southern states and were first introduced by the Democrat Party, and even when Republicans later began to support those laws, it was still isolated to the South.
It irks me when people conflate the Democratic party of the late 20th - 21st century and the pre-realignment Democratic party that originally represented rural America and the South. In short, the Democratic party was socially conservative until Roosevelt, and even then it took until the civil rights movement for conservative southern Democrats to abandon the party for the Republican ticket.