Final answer:
Marcus Garvey sought to combat black exploitation by initiating a 'Back to Africa' movement, advocating for black pride, self-reliance, and economic self-sufficiency, and by promoting the idea of independent black republics as part of his leadership in the Universal Negro Improvement Association (UNIA).
Step-by-step explanation:
Marcus Garvey, a Jamaican-born advocate of Pan-Africanism and leader of the Universal Negro Improvement Association (UNIA), proposed to combat the problem of black exploitation around the world by initiating a "Back to Africa" movement. This movement embraced universal black nationalism and the concept of black self-reliance. Garvey's ambition was to create a separate society for African-Americans, a society where black individuals could live free from the racism and exploitation they faced in America and other parts of the world. Furthermore, Garvey sought to promote black pride and economic self-sufficiency, and he set out plans for establishing independent black republics in Africa, Latin America, or the Caribbean.