Allow the Confederate States of America to secede

The Civil War was the bloodiest war America's ever fought, and it culminated with black people being recognized as human beings instead of property. No one wants to re-fight that war or to condemn it. However, it's time to let the South go.
-The South takes in far more federal money than it pays out. Ending the union would save the USA approx. $88.9 billion a year, reducing the current federal deficit by nearly 20%.
-The South opposes labor and environmental protections that the US favors. This difference would be enough to torpedo a free-trade agreement were the South a foreign country; therefore, they shouldn't get the trading privileges states of the US have.
-The South drags down the US's test scores. Business and academia need to see that most of the US is training tomorrow's workers