the last civil war didn't work out so well for the side with the rich people who wanted free labor or the fundie christians that used the bible to justify slavery
In all seriousness, the southern states should have been allowed to seperate peacefully. By conquering the southern states by killing hundreds of thousands of people and crushing all dissent just to maintain control of their resources rather than by allowing states who didnt want to be part of the union anymore seperate in peace, the Federal government basically became the very same tyrannical, physically and culturally remote ruling power that the original founding fathers fought to replace.
The same basic issues that led to the civil war never went away...and since they were kept under Union control at gunpoint, the same problems are again manifesting themselves.
The Federal government needs to have a serious overhaul and downsizing back to the original design laid out by the constitution, for the United States to work smoothly again. But since there is no way the Federal gov will give up any of its powerback to the states, there is only one solution really.
This 'union' needs to seperate.