George Washington was not a signatory of the Declaration of Independence. You like to bring him up but I'm not even considering him. I'm talking about the fanatics who drive the movement. We do have their correspondence. We do know their thoughts. They wrote philosophically about the issues. There were debates, schisms, etc. They were baking arguments on thinkers like Hume and Locke.

You want a simplistic, crass, dismissive explanation. Sure, money was a motivation for some, but not for the 2 million regular citizens and I'd say many of the drafters of the Declaration. I think someone like Franklin was ideological. He was heavily involved in advising France in a way that demonstrates a level of benevolence