What is the fine-grained topic of the following text: His struggles to learn English and assimilate into American society served as the raw material for his well-known 1982 autobiography, HUNGER OF MEMORY: THE EDUCATION OF RICHARD RODRIGUEZ, a milestone examination of education, cultural identity, and social alienation that remains controversial today for its criticism of bilingual education and affirmative action. Only return the topic.
The struggles and cultural experiences of Richard Rodriguez as presented in his controversial autobiography, "Hunger of Memory".