Yea they did as a result of a call from congress in May of '76 to break ties with England and form their own governments.
BTW. Do you really think that Washignton, Madison and the rest spent the summer of 1787 in Philadelphia crafting a constitution that would allow any group of conniving self-serving politicians to ignore at their pleasure. The idea was not to create a structure that would collapse in the first storm or be destroyed by opportunists but to create a lasting government that would benefit all. Taking a hike because you don't like the outcome of an election is not what they had in mind unless you think they were damn fools. But of course, the Confederates did call them damn fools in so many words even rejecting the Declaration principles of all men being created equal so it's no surprise to find the neo-confederates rejecting those ideals either.
You won't get a rise out of the neo-rebs on this.
They have to maintain that the framers met, and changed nothing at all, or even went backwards from the Arts. of Confed, which pledged a perpetual union. You have to assume that the "disorders" that G. Washington spoke of didn't faze anyone.
It's just another reason their logic is straight from "1984". Freedom is slavery, up is down, the Union is not a union.