How did the colonists justify their protests and ultimate rebellion?

The best example of justification is  declaration of independence.
main arguments have basis in natural law and justification of rebellion is overuse of power by uk and king george iii that means that he exploit colonists and treat them as second category citizens

Native americans is the answer and have you ever heard of google

Contributing factors  leading  to the harlem renaissance were the great migration of african americans to northern cities, which concentratedambitious  people in places where they could encourage each  other, and the first world war, which had created new industrial work opportunities for tens of thousands of people.