So do you think we should have stayed a colony to the UK?
No, but nor do I claim that it was legal under British law for the colonies to revolt. They won their freedom by force of arms, not legal argument.
You really seem to be having a hard time with this concept. Let me ask you this: If "any people, any time" have a constitutional right to revolt at any time, why is there a clause in the constitution talking about putting down insurrections? Surely, by your thinking, any rebellion or insurrection would be permissible under the Constitution.