Rioters have torched cars and public transport but also targeted town halls, police stations and schools - buildings that represent the French state.
Some said Nahel, who was shot dead on Tuesday, could have been any of them, or their sons, brothers or friends.
Yann Bastiere, a representative of the Unite SGP police union, said the officer who shot Nahel was innocent until proven guilty.
Belaidi said teachers were not replaced and hospitals lacked resources, which has led to a feeling of abandonment by the state.
Reporting by Layli Foroudi; additional reporting by Elizabeth Pineau; Editing by Angus MacSwanOur Standards: The Thomson Reuters Trust Principles.
Persons:
Benjamin Belaidi, Belaidi, Emmanuel Macron, Mohamed Jakoubi, Nahel, Yann Bastiere, Bastiere, Karima, Emile Chabal, Chabal, Olivier Klein, Layli Foroudi, Elizabeth Pineau, Angus MacSwan
Organizations:
PARIS, Reuters, police, Unite SGP police, Edinburgh University . Investment, France Inter, Thomson
Locations:
Paris, Nanterre, France, Nahel, Blanc Mesnil, Clichy