All true, but the States tried this with Lincoln and failed, and the people now a days, have not the heart.
The States will try vainly in court rooms, with the Federal Government trumping everything, while lawyers site case law, and all the while, ignore the Constitution, and Bill of Rights.
The people on the other hand will sit around and think of their next COMPROMISE, when they vote. Only a few will say: Enough is Enough, and stand their ground.