sorry you are not correct
in constitutional law...all powers in the constitution are federal..all other POWERS not delegated in the constitution are state, since there is no delegated powers to keep states in the union per the constitution, the power of leaving the union would be a state power.
every state constitution in it states that the people have the right to alter of abolish the government they have.
again there is no power per the constitution granted to the federal government to stop a state from leaving the union.
article 4 section 3 deals with creating a state inside a state, as in the case of West Virginia
May31st 1787..at the constitutional convention:A POWER WAS PROPOSED TO BE GRANTED TO THE FEDERAL GOVERNMENT...that power is the power for the federal government to preserve the harmony of the union..........that power was DENIED!
HERE IS THE TEXT OF THE CONVENTION.:
The other clauses [FN10] giving powers necessary to preserve harmony among the States to negative all State laws contravening in the opinion of the Nat. Leg. the articles of union, down to the last clause, (the words "or any treaties subsisting under the authority of the Union," being added after the words "contravening &c. the articles of the Union," on motion of Dr. FRANKLIN) were agreed to witht. debate or dissent. The last clause of Resolution 6. [FN11] authorizing an exertion of the force of the whole agst. a delinquent State came next into consideration.
Mr. MADISON, observed that the more he reflected on the use of force, the more he doubted the practicability, the justice and the efficacy of it when applied to people collectively and not individually. -A union of the States containing such an ingredient seemed to provide for its own destruction. The use of force agst. a State, would look more like a declaration of war, than an infliction of punishment, and would probably be considered by the party attacked as a dissolution of all previous compacts by which it might be bound. He hoped that such a system would be framed as might render this recourse [FN12] unnecessary, and moved that the clause be postponed. This motion was agreed to nem. con.
The Committee then rose & the House
Adjourned