Why does Malcolm X discuss the details of his early life in Michigan, Boston, and New York?

When you consider Malcolm X's political worldview, it makes perfect sense that he needed to discuss his early struggles in his life.  Malcolm believes that the white race in America has deliberately attempted to subjugate the black race in a number of different ways.  He does not believe that integration is possible because of this history.  The experiences that he has as a youngster seems to confirm this.  In Michigan, his father was murdered by white supremacists because of his activism.  Malcolm ends up in Harlem where he is convinced to leave his job as a porter which was a common service job for African-Americans.  He is convinced to do so by a local hustler that hires him in a number of criminal enterprises.  While in Harlem, Malcolm demonstrates his organization skills and is successful as a criminal.  Malcolm makes the case in his autobiography that a lot of African-Americans turn to crime because they have requisite skills to contribute to society but are not permitted to utilize them in legitimate business. After a falling out with his associates in Harlem, Malcolm moves to Boston and has similar success as a criminal.  He is caught burglarizing a home and is unfairly sentenced to do ten years, even though this was his first offense.  It is clear that Malcolm is not able to deliver the message of black separatism and black nationalism without communicating his terrible experiences with racism and injustice.  Malcolm feels his life of crime was a direct reflection of the African-American experience in America.  He does not trust white people because he has had such poor experiences in his earlier days with whites.