How many justifications are required before it is acceptable?
I would have thought it only took one. "We don't want to be part of your Union any more."
Are you saying that, in principle, People do not have a right to self determination?
I'll allow James Madison to answer that.
I return my thanks for the copy of your late very powerful Speech in the Senate of the United S. It crushes "nullification" and must hasten the abandonment of "Secession." But this dodges the blow by confounding the claim to secede at will, with the right of seceding from intolerable oppression. The former answers itself, being a violation, without cause, of a faith solemnly pledged. The latter is another name only for revolution, about which there is no theoretic controversy.