[Non-Sequitur]

Now how perpetual was that; I dare say no more perpetual than the Constitution, for as each state, by vote of it's citizens came in so by the same it could go out.

Which is what I've been saying all along. Under the Constitution, states are admitted with the permission of other states as expressed by a vote in Congress, there is no reason at all that they shouldn't be permitted to leave through the same process. But that's not what the Southern states did. They walked out without discussion, and in the process they repudiated responsibility for a share of the national debt, walked out on treaty obligations, and took everything they could get their hands on without compensation. Now how fair is that?

[smug]

states are admitted with the permission of other states

Not so. Each of the thirteen original states under the Articles of Confederation came in to the Union of the Constitution, at it's own vote without the permission or acceptance of or, by your leave. And since there was no express article in the Constitution forbidding it, so they could leave the same way. And as for the other states, once they are a state they are equal to and without reservation to any and all of the other states, they would then have the same rights as the originals.