What are the causes and consequences of the American Revolution, or Revolutions, from 1754 to 1800?

Did Americans, over those decades, alternately support policies of Imperialism and its opposite, republicanism? If so, why?And what were the consequences of each choice? Were those consequences successful, or not?Why did some Americans support, and some oppose, the French and Indian War? What or who caused that war, ie, which side was guilty of aggression? Why did opposition to that war increase after it?