Putting it another way: remember that your Founding Fathers broke the law when they seceded from Britain.
Secession is always, always going to be against the law. The question must not be “is it legal to secede?” but “is it right and necessary to secede?”. That is the question your Founding Fathers asked themselves.
The States must insist upon their sovereign status, and the days of “these United States” must return. Otherwise the US will become a top-heavy Soviet.
And even some of the Soviet states had the courage to revolt.