It’s been amended many times without causing a civil war.
The point is not whether or not the Constitution is “in charge.” My point is that it has no relevance in an opinionated discussion on an internet forum. You Constitutionists always act like if you pull a proof from the Constitution it automatically makes your opinion the only valid one. You agree with the opinions of the framers of the Constitution… So what? Others don’t. Nearly every other civilized country has been able to advance in this regard by not being tied down to a crusty peace of parchment like they’re some kind of secular theocracy.