I think this is part of a broader effort by the Red states to set up a constitutional crisis to a) allow them to do whatever they want under their own loose confederation and b) tear down the whole concept of the United States and take over the blue states and force them into their camp.

There actually has been a supreme court ruling on secession "On April 15, 1869, Chief Justice Salmon P. Chase announced a ruling in favor of Texas on the grounds that the Confederate government had no legal existence, and that Texas, since its admission in 1845, was part of “an indestructible union, composed of indestructible states. Although the ruling conceded that divisibility was possible “through revolution or through consent of the states,” it declared the ordinances of secession, as applied to Texas in 1861, “absolutely null.”"

But that doesn't answer what to do if a state wants to leave since there is no mechanism to do that. If Texas decided that was really it and tried to leave Biden would be forced to send in the military to make sure they didn't and it would lead to financial ruin and a federal government takeover. But that's not what they are trying to do. It's going to be a large group of states that want to leave and you know who those states are. I suspect this is their backup plan if a Republican is not elected in 2024. It would truly start another civil war and collapse the world's economy. That's why I'm building a bunker