[smazibummigue]

With a majority of States opposing government action as outside their proper scope, a scant few peaceful possibilities emerge:
1. Obama abandons Obamacare, his signature legislation.
2. A Constitutional Convention is convened.
3. 10th Amendment remedies are rejoined, e.g., nullification and secession.

Surely you're ignoring the most obvious peaceful solution: vote to change those running the government. If a strong majority of the nation is no longer happy with the government, and they care about it enough to do anything, they have a peaceful, legal and constitutional way to change it. Even the Constitution itself is amendable if the people are sufficiently unhappy with it.

And that, by-the-by, is a tremendous difference between the first and "second" American Revolutions. Colonial America was not represented in the British Parliament; the South had very strong representation in the US Congress (unjustly strong when one remembers the 3/5ths compromise).