It was more your statement that no-one doubted their right to secede. Obviously you were incorrect. And that's without going into the writings of men like Clay and Webster and Jackson and Buchanan and Lincoln who all disputed the right to secede under any circumstances, or men like Madison who believed it possible with the consent of the states.
Where in the Constitution does it tell us we can’t leave? Or even what the “process” is? Seriously, perhaps I just didn’t see it when skimming.
There is nothing in the Constitution that says a state can't leave. So secession should be allowed. But how? Nothing lays out a process for leaving. That process should be determined by looking at the Constitution as a whole. And since a state cannot join without the consent of the other states, and once in it cannot split or combine with another state or change its borders by a fraction of an inch without the consent of the other states, then its no stretch to conclude that leaving should require the consent of the other states as well. How else will the interests of all states be protected?
Nonsense.
Just because there’s a “process” for going in doesn’t mean there is 1 for going out of similar type.
Again - what is really hurting the “union” by 1 leaving? Cause some upheavals, sure; but seriously, why is it so dangerous to leave, vs. enter?