Final answer:
The Black Spades were not a Black Power Movement organization; this is false. The colonizationist scheme was not uniformly popular among black abolitionists, which makes that statement also false. The African American group that espoused a Marxist ideology and advocated for violence was the Black Panther Party.
Step-by-step explanation:
The statement that The Black Spades were a Black Power Movement organization is false. The Black Spades were actually a street gang founded in the Bronx, New York, in the late 1960s.
While they had influence on the culture and iconography of the hip-hop movement which emerged from the same area, they were not directly a Black Power Movement organization. This movement was symbolized by groups like the Black Panther Party, which had clear political objectives.
The question regarding the colonizationist scheme of the early 1800s and its popularity among black abolitionists relates to a historical proposal to return free African Americans to Africa.
This scheme, which led to the founding of Liberia, was indeed supported by some black abolitionists but also faced opposition. Therefore, the statement can be considered false, as it was not universally popular among black abolitionists.
Additionally, the African American group that advocated the use of violence and espoused a Marxist ideology was called the Black Panther Party.
Founded in 1966 by Huey Newton and Bobby Seale, they sought community control, police accountability, and provision of social services in African American neighborhoods, advocating a radical approach influenced by Malcolm X's philosophy and Marxist thought.