During the New York ratifying convention in 1788, which narrowly voted for ratification, someone wrote to Madison to the effect that New York might ratify on the proviso that a Bill of Rights be added (but then repeal the ratification if it wasn't), but Madison wrote that a ratification could not be rescinded. (Don't remember the exact terms used, but to that effect.)
I believe that during the first week of the first meeting of Congress in 1789, a Congressman from South Carolina threatened secession.
During the War of 1812 there was sentiment for secession in the New England states.
You’re introducing too many issues.
Choose 1, post 1.
Choose another, post it.
Choose them one at a time, post them.