There is a big Arab population, some French and some not, and a not that large sub-Saharan African population.

Many of the people in these groups have roots in - or links to - countries which are mostly Muslim, and a number of them are indeed Muslim (but, by far, not all).

I hate the subtle move from "Arab" to "Muslim" to describe these groups, especially in France. It is absurd, for instance, to describe Rachida Dati as a "Muslim" as all English-language newspapers do when writing about her.

In the long run, we're all dead. John Maynard Keynes