LOL!! Couple of questions for you here. Real simple.
1--Which Jewish statesman held 3 different positions on the Confederate Cabinet
2--Where is the ONLY Jewish military cemetary outside of the state of Israel?
Here's a hint. You won't find the answers north of Virginia. Thirdly pick up the Jewish Confederates. Don't think it would open your closed mind but it's still factual. I know that's something you yankees play fast and loose with, this however is truth
Reconstruction and its aftermath created some serious battle lines. Sadly, at that time there was no way a group of white Southerner ex-Confederates was going to "officially", on paper, give any credence to black assistance of any kind during the war. Not after carpetbaggers and scalawags had used black democratic votes (and vote fraud on a massive scale) to vote themselves money and power, while disenfranchising the Confederate veterans.
That's why contemporary documents are of greater value than the backward glances of the Old Boys after the colors fade.
But, as usual, the official rhetoric was belied by the actual conduct of folks on the ground in their relations with people that they knew. In addition to the story of gg grandfather's former slave, some of my cousins' family were Confederate Veterans over in Rome, GA, and I know from reading a history of the city that there was at least one black member of their organization. He raised fighting chickens, I think, and he frequently brought his prize roosters to the reunions. (That oughta get the PETA maniacs riled up, huh?)