Lol, obvious lie, or you would know the Democrats founded the KKK. Even in modern times your connections persisted. Biden literally eulogized Robert Byrd, a long time Democrat senator, and former high ranking leader in the Ku Klux Klan. He held the title of Grand Cyclops, which I'm sure you are very familiar with.
In a 1944 letter to segregationist Mississippi Senator Theodore G. Bilbo, Byrd wrote,
As late as 1946, Byrd wrote to the Klan’s Grand Wizard: “The Klan is needed today as never before, and I am anxious to see its rebirth here in West Virginia and in every state in the nation.”