"This could spread across the pond"
Not likely.
It sounds as if the French are reluctant to use overwhelming force to quell this problem. Declare a curfew, shoot violators. It seems to work elsewhere.
Another issue is the fact that Muslims in Europe are not likely to integrate into the culture as they are here. Muslims are not accepted and are looked upon as a lower class.
"Not likely."
Mostly true, but I'm not so sure about Detroit.
Remind you of anyplace? Like (French) New Orleans?