So the Tenth Amendment, by its own language, does not permit any state to claim jurisdictional supremacy.
Secession is nothing other but a declaration by the seceding entity of its own jurisdictional supremacy - a violation of Article VI of the Constitution and a claim of power that is expressly excluded from the scope of the Tenth Amendment.
True ..... as long as the State remained in the Union.
When an NFL player or coach is under contract to the New England Patriots, he cannot exercise "supremacy" on the football field and simply switch teams at half time to play for the Miami Dolphins.
He must first excersise whatever "out clauses" are in his contract and the presence or absence of those "out clauses" depend on how their contract is written.
However, once that player or coach exercises his "out clause" contractual rights, he can go his own way and THEN play for the Miami Dolphins.
By the plain language of the Tenth Amendment, since secession was not mentioned in the Constitution and since no Federal law prohibited secession, secession was a "Power ... reserved to the States respectively, or to the people."
It is equivalent, in the NFL, to free agency being permitted under certain circumstances to some players because that is the way the NFL contracts for that player are written.
So the Tenth Amendment, by its own language, does not permit any state to claim jurisdictional supremacy.
And no State did as long as they remained in the Union.
After they exercised their "out clause" contractual rights guaranteed by the Tenth Amendment, the Supremacy Clause in the U.S. Constitution was a moot point just as Bill Parcell's prior New England Patriot coaching contract provisions are a moot point now that he legally exited his contract with the New England Patriots and entered a new and separate contract with the Miami Dolphins.
Secession is nothing other but a declaration by the seceding entity of its own jurisdictional supremacy - a violation of Article VI of the Constitution and a claim of power that is expressly excluded from the scope of the Tenth Amendment.
Not at all.
"Jurisdictional supremacy" would be Bill Parcells switching teams in mid-game in violation of his New England Patriots coaching contract or refusing to abide by the rulings on the field of the NFL officials.
Exercising the "out clause" of your contract and then entering into a new contract with another team has absolutely no equivalence with "supremacy" of any kind.
It is simply the exercising of one of the rights guranteed by the language of your particular contract.