Nathan Bedford Forrest did not found the KKK. It was already around when he took over. As soon he saw how radical it was becoming, he disbanded it. It reformed as the Klan we all know a couple of decades after he died. He was also one of the earliest proponents of affirmative action.
“… one of the earliest proponents of affirmative action.”
But for genetic inferiority (the Dem view) or for cultural change?