That description of American Colonists is exactly why there was a rebellion.

The English treated the colonists like second-class citizens, going so far as to try to get Ben Franklin to answer for things like the Tea Party, while he was in England, and a Loyalist.

The simplistic "rebelled over taxation" is just a representation of how the Crown and European Brits viewed and treated the colonists.

Colonists didn't quit Britain, the Briton's quit on the Colonists.