What is the main conflict in Voices from the Harlem Renaissance by Nathan Irvin Huggins?

Another concept is that the sheer number of Negroes means the race can effect great change, but that there must be a coming together in order to make that happen. This unity is seen in different ways by different writers, with some insisting that Negroes must see things the same and pull from their African roots while other says that it's no more necessary that they be "African" than for a person with ancestors from Germany to act "German."