Like I said, nobody is arguing against the history of the Democratic Party. Key word italicized.
Misleading statistic. The split was really between the South and everybody else. And Democrats, as we have established, dominated the South at that time, and Southern Democrats were a much bigger chunk of the Democratic Party than Southern Republicans were of the GOP. Once you control for region, however, Democrats were MORE likely to support it than the GOP. In former Confederate states, ZERO of the Republicans voted for the 1964 CRA while a small number of Democrats did, and among the rest of the states, it garnered 95% of Democrats supporting and 85% of Republican support.
This is you not understanding what racism is.
The politics of the youngest two voting generations says otherwise. Or at least that they will the GOP in worse regard than the Dems.