If not secession, then revolution must be. As for secession being illegal and settled law by the SC, F the SC and its rulings. Texas v. White makes as much sense as Roberts decision.
Texas v. White threw the Declaration of Independence into the trash can, along with the Constitution by arguing that once a state enters the Union, it is bound forever to the Union. On its face, that argument doesn’t pass the absurdity test.
Carried to an extreme (or maybe not so extreme), Texas v. White would hold that the federal government could tax us into abject poverty and sell us as slaves and there would be nothing the states or its citizens could do to rid themselves of such tyranny.