The Confederacy was actually amazingly successful and were unjustly put down, in direct violation of the Constitution, and have been unfairly demonized ever since.
In fact it is still politically correct to make fun of southerners as rednecks, ignorant, inbred, etc.
I'll tell you, I'm from the Bronx, and I knew enough idiots, racists (black and white), etc. to balance their compatriots in the South.
The Confederate battle flags stand today as a symbol of States' Rights, even to a born Yankee like me.