To imply that a state asks permission to leave means there are consequences if they don't [ask]. Having consequences makes the remaining states belligerents, no other way to spin that.
Why do I bother....
If they choose to violate the Constitution while leaving then I guess that would be the result. Their choice.
Why do I bother....
Excellent question. Your inane view that the Constitution is a club for the leaving states to beat the remaining states with doesn't get any more logical with your continued repeating.