The whole of America was never financially obligated to George the III. The Declaration of Independence was a reiteration of previously held conversations between England and the USA. It was provided as a courtesy and matter of record to proffer the status created by the many hardy peoples that had arrived to the North America shores long prior.
Before July the Fourth in 1776…
The Native Americans were here. There was no allegiance to England.
In 1564 René Goulaine de Laudonnière founded Fort Caroline in Florida for the Huguenot (French) Protestant refugees’ relief from religious persecution. There was no allegiance to England.
In 1607 Jamestown, a settlement in the Colony of Virginia, became the first permanent English settlement in the Americas.
In 1620 The Pilgrims arrived at Plymouth Rock, Massachusetts. They traveled so as to leave the Church of England so there was no allegiance to England.
In 1624 30 Dutch families, sponsored by the West India Company, established a settlement on present-day Manhattan. There was no allegiance to England.
In 1638 Peter Minuet leads a group of Swedes to the Delaware and establishes the first permanent settlement on the Delaware at Fort Christina. There was no allegiance to England.
In 1683 The first permanent German settlement was Germantown, Pennsylvania. There was no allegiance to England.
Just to name a few of the original start-ups in The United States of America. WE THE PEOPLE arrived without allegiance to previous collectives. The English were not the first arrivals, but they were, the largest claimant. The English were like The Borg across this planet.
So why was taxation demanded by one leader of one country upon expatriates from various countries? Then as now, forced taxation without responsible representation, demands a TEA PARTY!