There is a growing secession movement in Vermont. While many think that the issue of secession was settled with the Civil War, there are a couple of key differences here. The movement calls for a peaceful withdrawal from the Union, and slavery is illegal in Vermont.
The biggest military mistake that the Confederacy ever made was firing on Fort Sumter in the first place. A little bit of patience and lobbying through Congress may or may not have gotten them what they wanted, but whatever would have happened would have been better than what did happen. More Americans died in 3 days at Gettysburg than died in 10 years of Vietnam. The South started that war and got what they deserved.
It can be said that the Civil War was a struggle of state's rights versus human rights. Whenever it comes down to a question of supporting one over the other, I will always support the rights of the individual over the right of a state government. And if the majority of individuals in a state wish to part ways with the rest of us, they should be allowed to do so.