The South has been paying for losing that war ever since.
Really? LBJ. Jimmy Carter. Bill Clinton. Both Bush's. I'd say they've gotten their revenge and then some.
The whole country has. The original constitution died at Appamattox and was replaced by one in which the federal government no longer respected any limitations on its own power. The result as Lee predicted, is out of control debts, constant foreign meddling and oppression at home.