So?
That is the right for revolution not secession.
I see you are battling strawman again.
Spoken like a true oppressor.
What part of distinct, independent sovereigns don't you understand? The colonists had just thrown off one oppressive central government (Britain). What makes you think they wanted to turn everything over to another central government without strong checks on its power? Why should they set it up so that they would have to go through another Revolutionary War in order to free themselves of central government oppression? They were smarter than that.