Article V ping.
All we need to do is enforce the constitution we have. Elect the right people to implement our written constitution and all will be well.
That's one argument against an Article V convention. That was also an argument against writing the first ten amendments (the so-called Bill of Rights) because all those things were not enumerated powers to the federal government and, therefore, were automatically forbidden from the federal government by the Constitution itself. Although true, that argument lost to the argument that the federal government would take liberties if these things were not expressly stated in the initial amendments. So it is today. Both time and progressive activism has, as you point out, effectively and illegally amended the Constitution.
So the valuable outcome here would be a recent, clear amendment expressly limiting government and government spending. As with the first ten amendments, this would act as a clear proscription that is inferred in the Constitution but ignored. It will be hard to ignore a freshly-passed, clearly-written Constitutional Amendment.
There are more steps states can take to recover their freedom and independence FROM the feds but UNDER the Constitution, but this is an important first step.