> That makes them French, not Arabic then.
The problem is somewhere in that distinction I imagine.Yes, precisely. To recap very roughly: France brought in a lot of cheap labor from North Africa (a lot of Morocco, Tunisia, Algeria) to rebuild and develop at low cost after World War 2. These immigrants were housed together, at the periphery of large cities (what are now known as "banlieues"). These neighborhoods still exist, and a lot of the children and grandchildren of these immigrants still live there. These areas are typically poorer than the cities they're next to, have poor education, higher crime rates, etc.
Of course, they're French citizens, but they don't feel particularly French because the rest of French society tends to look down on them and segregate them. And they might speak a bit of Arabic at home (or not), but they don't really feel Arabic because, well, they've spent their whole life in France, and even if they go to Tunisia/Morocco/Algeria/etc. a few weeks in the summer to visit extended family, people there don't see them as belonging there anymore.
It's a thorny situation.