This whole essay is one big strawman. There was no serious consideration or argument for breaking up the Union. There WAS argument for PRESERVING the confederacy under the Articles of Confederation. The delegates who met in Philadelphia were only supposed to amend the articles. They were not asked to create a new, consolidated national government. They were merely supposed to add a few powers to the congress.
The problems with the articles were significant. The confederation was hardly a government at all.
The delegates who met in Philadelphia were only supposed to amend the articles.
Free men may change their form of government. Yes?
The Constitution was eventually ratified by all of the states, in accordance with the Articles of Confederation.