Mark, from the link you provided:
The Ku Klux Klan was originally an arm of the Southern Democratic Party. Its mission was to terrorize freed slaves and Republicans who sympathized with them. An estimated 3,446 blacks and 1,297 whites died at the end of KKK ropes from 1882 to 1964.
Now here's a couple for you:
How Blacks became Democratic: The Myth of Republican Racism
How FDR's Racism Gave Democrats the Black Vote
Some New Deal programs benefited black Americans, who were among the hardest hit during the Great Depression, and thus, caused them to switch parties. By 1936, 75 percent of blacks became Democrats, whereas pre-1936, 90 percent of blacks voted Republican. Democrats were dumbfounded: how had they gotten so lucky as to gain the trust of the people they were hoping to oppress? Franklin Delano Roosevelt.
This is the problem modern Republicans are facing. Democrats have been using and manipulating entire races for nearly a century. For them, lying about their history while simultaneously gaslighting the American public is a walk in the park.
Keep them poor and then promise to help- The Democrats don't care about black people, only their votes.