The colonial Americans invoked the natural right to revolution in response to what they felt was oppression and tyranny
1. The colonial Americans invented that 'natural right of revolution' out of whole cloth. No such 'right' existed before they came up with it.
2. Natural right or not, what they did was treason, and unlike yourself, they completely understood that. That we don't call it treason is proof that we won, had they lost, they would have hung - no doubt about it.