(1) I thought we are talking about statues and history? Are we back to the GOP again?
(2) Wilson, FDR and Sanger on the chopping block? All Republicans? First time I am hearing this...
(3) The Clintons spoke highly of another KKK Democrat legend Robert Byrd.  
(4) This switch sides story is mostly a myth and just shows that you repeat left-wing slogans and talking points without a critical mindset. The GOP outvoted the Democrats in favour of the Civil Rights Act in both Houses (roughly 80 to 60 percent). It included such prominent Democratic Senators as the problematic Byrd and Fulbright (also got an award from Clinton), but also Gore. Only one Senator switched parties after the 1964 Act - Strom Thurmond. 

The South started to turn red around the 1950 whilst the Southern Democrats still were segregationist. Mostly from out of state new middle class immigrants on economic grounds.

Lefties are so dof partly because they don't engage history, instead they create new myths...