You're either a New Englander or you're dripping in fear of New England. Either way, you haven't posted sources. I think this is fun, so keep running around and I'll keep learning more proof that secession was legal.
Your source of the proof of this is .... ?
As for me, the Supreme Court, says that the legality of secession without consent, is Unconstitutional(illegal) and until such time as the the People of the United States and/or their representatives or the Courts say otherwise, that ruling is part of the law of the land and to that extent, to all intents and purposes,Ironclad.