One thing about France is that in their constitution, they have freedom from religion. The Muslims hate that because the French are cracking down on this sort of nonsense. In France, you have to be French!
The total fertility rate of the native French citizen is 1.8, well below replacement levels. What demographic’s fertility rate is exploding well past replacement levels with a kicker that natives subsidize this demographic life style? Secularism isn’t paying off as well as you think in France. By 10 years or so France’s Constitution won’t matter.