What proof does Draper provide to sustain his argument that the American Revolution was primarily a struggle for power?

The Treaty of Paris in 1763 established Britain’s claim on the Canadian territory. The French no longer posed a threat in North America. In A Struggle for Power, Theodore Draper explains that as the colonists began to prosper they realized that they were perfectly capable of governing themselves, and their resentment of British rule began to grow.
After the war with the French ended, the colonists were free to focus on building their own society. Economically, England relied on the colonies both as producers of goods and as a market for British industries (not to mention as a source of tax money). The colonists, however, could stand on their own without financial support from the mother country. When the colonists recognized that England’s global power depended on income generated by its new land, they decided that they should seize that power for themselves as an independent, self-governing country.
Draper explains that this power struggle—the colonists’ demand to govern themselves, rather than a disagreement about which system of government they should have—was the real reason behind the American Revolution.