The Notre Dame attacker (who attacked a cop with a hammer for 'Syria} was a 40 year old Algerian   PHD student in a French university, living in a French university residence. All that paid by the French.   Please let me know what better job could France have done to help this terrorist better  integrate? 

Also, FYI, France welcomes 260,000 foreign students a year who come and study for free and/or with generous scholarships. Many French speaking students come from the Arab world.