I just want to add that when the constitution was ratified, it was not done by the state legislatures. There was a special election of delegates in each state for the sole purpose of ratification. Therefore, the constitution is a political agreement with the people, not necessarily with the states, that was recognized as LAW, not some abstract conjecture.
This sheds a little bit of light on what might have been going through the minds of those participating in the whiskey rebellion, what they thought about the meaning of enumerated powers and who decides what is constitutional. Of course I do not recommend violence. I am just pointing out that states are not the only entities with nullification powers, although it probably lends more credibility to the cause for a state legislature to be involved than civil disobedience alone.
Good, thoughtful post!