Just to add. Our Civil War was a pyrrhic victory. Not only did we lose horrific numbers of lives, but the south should have never attacked the north after seceding. They successfully seceded, then started a war. How stupid is that?
I believe that if they stayed seceded, then after a few years, the north and south would have worked out the states rights issues, and we wouldn't have the super large federal government like we do today.
There are times I wish the south had won. With victory of the north, we lost the intent of states rights in our cons ution.
Slavery was just one issue under states rights I'm sure it would have evolved after time as well, and we probably wouldn't have the same animosity we have still today.