My point has always been we had better know the Principles upon which this country was founded. They are found in the Declaration of Independence they need to be carefully read and understood. I have quoted at length from that document. No one has pointed out where or how I misunderstand its principles. Make the argument based on the text, I'm all ears.
The south had a natural right to secede in order to perpetuate and extend the institution of chattel slavery.
Your error is that the South only seceded to perpetuate slavery. Even if you are correct, your other error is that because the South screwed up, therefore the states have no sovereignty and we must all take whatever the feds dish out. However, it's not true. The structure of the US did not fundamentally change, at least in law. The states still are sovereign.