Noted....I disagree 100%...
The outcome of the American Civil War decided otherwise....An act of secession is not constrained by the rules of the country being seceded from...
Indeed. The victor writes the rules, and history, and gives his perspective the force of law....The American revolution was illegal according to British law in the 1700s...
Indeed....Secession is effectively an act of war...
No, I seriously doubt that American is going to undergo another Civil War, nor that there will ever again be any serious attempt at secession or dissolution....would this country engage in another civil war over politics? Or would it peacefully divide as the USSR did? I think the latter, but hopefully we won't have to find out.
However, having said that, if another liberal democrat is put in the whitehouse, there might be enough pissed off people to push a secession or dissolution movement.
All empires fall, and ours will, too, one day, but not anytime soon, and the Union is unlikely to dissolve within the lifetime of any generation that any of us will ever know.