-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.
It irks me when people conflate the opinions of some Republicans with the opinions of all Republicans, or some conservatives with all conservatives, or holding some views with holding all views. It really irks me that, just because there are racist Republicans or uneducated conservatives or a moron Republican for a president, that so many liberals feel that they are so obviously right on every issue that there is no debate about anything.
By the way, did you actually read the rest of that sentence you quoted?