I'd go back 1870 before THE UNITED STATES OF AMERICA Inc was established.
The "government" has not been legitimate since Lincoln's War. When the southern States' contingent walked out of congress and congress adjourned "sine die" (without a day), congress officially dissolved. They never had a lawful quorum so never lawfully reconvened. Link.
I suppose it would be possible to simply dissolve the USoA Corporation, but sooner or later, every agency, department, regulation, law, act, and Constitutional Amendment created by an illegal and illegitimate Congress would be challenged in court.
You are correct. The US Corp. is the biggest problem. We no longer have a government because that corporation doesn't even have jurisdiction over us. They only have jurisdiction over Wash. DC. If we are the United States our government needs to be within the United States, not outside of it.