They may have no authority but they do have a fair amount of Power and a tyrant that is willing to use it.
The Constitution is about as useful as an order of protection against an abusive husband intent on murder, the wife can wave it in his face while he chokes the life out of her. Maybe she should have a gun permit to wave instead.
Or a friend or neighbor who tells her "You took vows for better or worse. Did you forget that part?"
If the enumerated powers do not define the boundaries of laws and regulations Congress can enact, then the Tenth Amendment is meaningless.
The Constitution is about as useful as an order of protection against an abusive husband intent on murder, the wife can wave it in his face while he chokes the life out of her.
That was a quick change of argument: from the-Constitution-authorizes-the-Drug-War to the-Constitution's-nonauthorization-of-the-Drug-War-is-ineffectual.
Maybe she should have a gun permit to wave instead.
If a future presidential administration tries to revoke the detente with legalizing states, I hope those states are willing to use their guns.