The answer is "marginalization."
Explanation:
Marginalization is equal to social exclusion, a process in which an individual is treated as insignificant or as an outcast in a specific group of people. Nazim feels like he does not belong to France because French people discriminate against him. Besides, the Algerian community treats him as a different person who seems too French to be Algerian. Therefore, Nazim experiences marginalization from both groups.