What is the theme in The River Niger by Joseph A. Walker?

African-American identity politics is a central theme in the book.Throughout the play, Walker explores a variety of approaches to black struggles for racial equality. Several of the different political philosophies and organizations active among African Americans during the early 1970s are mentioned, discussed, and debated by various characters. Mo, Al, Chips, and Skeeter have chosen to fight racism through belonging to a "revolutionary" organization resembling the Black Panthers. Their approach is to attempt to commit a violent act in the name of revolution. The early black nationalist and separatist leader Marcus Garvey is mentioned, as well as Muslim black nationalist leader Malcolm X.