Well, part of it, and Lord North was definitely not Hitler. Also colonialism, anti-independence, being unrepresented in Parliament, etc. Doesn't quite boil down to as neat a single term to define it but we generally know what we're getting at, antithesis of the Declaration and all that jazz.

Sort of on all three accounts, but the stories we tell ourselves matter.

The revolutionary war defeated colonialism, monarchism was defeated when Washington refused to be a king.