Judging from the political map below, I'd say it was Democrats who burned Greenville to the ground...
Yeah, because back in 1920, Conservatives ran the Democratic Party.
Then in 1964, all those Conservatives switched to the GOP because Goldwater and the Birchers forced the party in that racist direction, and Nixon and Reagan ran with it.
There were only TWO Southern Republicans in both chambers of Congress that voted for the 1964 Civil Rights Act, and they were both Senators from Kentucky, a Southern-ish state.
No Republican from any other Southern State voted for the Civil Rights Act in 1964.