Goldwater had once said that the nation might be “better off if we could just saw off the Eastern Seaboard and let it float out to sea.†He was half right...he should have added the West Coast too! But then in 64 naybe they were sane out there.
After the Kennedy assassination, Pubbies had no chance. LBJ breezed in. It didn't help that Goldwater was against the '64 CR Bill. Instead of the 32% of the black vote Nixon got in '60, Goldwater only got 6%. Goldwater was not racist (he had backed CR legislation in Arizona), he just thought the '64 bill was unconstitutional and would lead to disaster. He was right.
But ever since he ran, Pubbies have struggled to get even 10% of the black vote. Even Reagan never got 10% of the black vote, but he still crushed Mondale in '84.
People, at least average Dems, were a lot saner thirty years ago and further. Reagan got 62% of the white male Dem vote in '84. Today's Dems of both sexes are far more lib/leftist.