The premise that "many Africans turned to the Communist Party of the United States" is historically inaccurate. No significant movement of African immigrants or African Americans joined the CPUSA in the numbers or pattern implied. The historical record shows a more nuanced, limited engagement.
African Americans and the CPUSA (1920s–1950s): The CPUSA actively recruited Black Americans during its "Third Period" (1928–1935) and Popular Front era (1935–1939), emphasizing anti-lynching campaigns, labor organizing (Sharecroppers' Union, CIO), and the Scottsboro Boys defense. Notable Black Communists included Claudia Jones, Harry Haywood, James W. Ford, Benjamin Davis Jr., William L. Patterson. However, peak Black membership likely numbered in the low thousands—never a mass movement.
African immigrants: Significant voluntary African immigration to the U.S. began only after the 1965 Immigration Act. Pre-1965 African presence was tiny (students, diplomats, seamen). No evidence exists of organized African immigrant affiliation with CPUSA.
African independence leaders: Some future African heads of state (Nkrumah, Kenyatta, Nyerere) studied in the U.S. or UK and encountered Marxist ideas, but CPUSA membership was not a notable pathway.
Historians (Robin D.G. Kelley, Mark Naison, Gerald Horne) document CPUSA's real but limited Black membership. The Party's influence derived from organizing capacity and legal defense work, not mass adherence. African immigrants were not a constituency.