I commend your mention and rejection of slavery. People in CSA fan club often do not admit the connection.
But saying the CSA was a paradise on earth except for the little matter of slavery is a little like saying Hitler revitalized the German economy and established political order but was unfortunately bogged down with a policy of genocide.
The "limited government" reb fans like to cite wasn't so limited at all. I guess when a past regime is a loser it gets a pass on its actual policies. The home rule, small government and individual liberty certainly didn't apply to the slave who could have been torn from his wife and family at the whim of his "owner". But then again, Confederates always had a problem with respecting the liberty of anybody else but themselves. I know that fairminded person today who examines that will conclude that is not consistent with the better ideals of our founding.
And I think you might be surprised if you read accounts of the reb regime's actions on the home front. There were a lot government action that doesn't sound very limited to me. The whole Confederate purpose was merely to support the continued idleness and moral decay of a decadent, nonproductive but very powerful plantation "elite". History attests to the unworthiness of the Confederate cause. The American Revolution succeeded in adversity because the cause was noble. The CSA collapsed quickly when faced with a little adversity because the cause was nothing more than an expression od selfishness. God and history have spoken.
...the most High ruleth in the kingdom of men, and giveth it to whomsoever he will.
Daniel 4:32