What is a good thesis statement for the question motivated European imerialism and why was imperialism so successful in Africa?

A good thesis statement for the question "What motivated European imperialism and why was imperialism so successful in Africa?" could be:

European imperialism in Africa was driven by a combination of economic, political, and social factors, and its success was facilitated by a number of factors, including European military and technological superiority, the decline of African empires, and the collaboration of African elites.