Decades which saw France denying political rights and using overwhelming force to maintain its colony created a two-tier system which, in simple terms, involved a ruling French class and a servile Algerian one. This, equally starkly, is why French-Algerian communities still live on impoverished housing estates, go to bad schools, and have few opportunities for social advancement. At best they get menial jobs, at worst they end up unemployed or in prison.

Secular France is officially colour-blind, meaning that politicians are not allowed to offer statistics about French-Algerians. However, sociological studies routinely reveal scandalous discrimination against up to 4 million of them in everything from jobs to housing. Woeful under-representation can be seen throughout public life. There are pitifully few French-Algerians in politics, the law, the media or any other profession.

https://www.theguardian.com/commentisfree/2012/dec/19/french-algerians-still-second-class