Articles of Confederation & Perpetual Union,

Nice try though, try again.
Best Regards
Lobato1
Even extending to the Articles of Confederation - the sovereignty of the states is announced:
Article I. The Stile of this Confederacy shall be "The United States of America."
Article II. Each state retains its sovereignty, freedom, and independence, and every Power, Jurisdiction, and right, which is not by this confederation expressly delegated to the United States, in Congress assembled.
Article III. The said States hereby severally enter into a firm league of friendship with each other, for their common defense, the security of their liberties, and their mutual and general welfare, binding themselves to assist each other, against all force offered to, or attacks made upon them, or any of them, on account of religion, sovereignty, trade, or any other pretense whatever.
The States were so against a federal government that would control them that when the Articles of Confederation proved inadequate to maintain freedom from outside invasion they adopted the constitution that grants only certain powers to the federal government and leaves the states their sovereignty. - see the tenth amendment.
You forgot the rest of that line:
"Articles of Confederation and perpetual Union between the States of New Hampshire, Massachusetts-bay, Rhode Island and Providence Plantations, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina and Georgia."
I don't see that any other states have formed a "perpetual union" other than those listed. Remember that this document was superseded by the constitution. It has no legal standing other than as a reference document. As a reference it is important to note that even having stated a perpetual union between those states it goes on to say the following:
"Articles of Confederation and perpetual Union between the States of New Hampshire, Massachusetts-bay, Rhode Island and Providence Plantations, Connecticut, New York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, North Carolina, South Carolina and Georgia.
Article I. The Stile of this
Confederacy shall be "The United States of America."
Article II.
Each state retains its sovereignty, freedom, and independence, and every Power, Jurisdiction, and right, which is not by this confederation expressly delegated to the United States, in Congress assembled.
Article III. The said States hereby severally
enter into a firm league of friendship with each other, for their common defense, the security of their liberties, and their mutual and general welfare, binding themselves to assist each other, against all force offered to, or attacks made upon them, or any of them, on account of religion, sovereignty, trade, or any other pretense whatever."
Which further defines their relationship as a voluntary partnership and not as a "nation" unto itself.