And pray tell, what good were British deeds after the Colonies declared independence?
King George III owned all the colonies. Were we supposed to respect his claims to the land because he had papers that said it was his?
Actually many of the British grants and deeds engendered court cases for years after independence. The same is true with lands taken or bought from Mexico.
Secession would only be legal with an amendment allowing it.
The Union was perpetual and not dissolved by the choice of one or more states. The constitution explicitly gives the fed gov the power to suppress Insurrection.
The insurrection was different than the Revolution.
The colonies were governed by an empire which restricted self-government and political rights.
The insurrection was a revolt against a government governing with the blessing of the People. A government which had been in the control of the South with only three presidents who were not from the South or accepted slavery
Big difference, as you should know.