“But no Founder and no Founding document ever claimed an unlimited “right of secession” at pleasure.”
That is an interesting comment.
What, exactly, did the founding document say about “at pleasure.”
As always the PC Revisionists have it exactly backwards. They seem to come at it from the belief that the state's powers flow from the federal and that barring an express grant of power by the federal government to the state governments then the states don't have it. Wrong! Its exactly the opposite. Barring an express grant of power from the states to the federal then the federal does not have it. Nowhere is the federal government given the power to prevent secession nor are any conditions put on when a state may exercise its right to secession.
There was nothing "at pleasure" about the Declaration.