Forcefully round them up and drop them off back where they came from. They'll quickly realize what dumb fucks they are, and what the word "opportunity" really means.
It is the second and third generation Muslims that are often problematic. Their fathers and grandfathers came to these countries for better economic opportunity, in addition to fleeing dictatorial oppressive regimes.
The offspring quickly become arrogant, spoiled little shits, and use retarded 8th century spiritual teachings to justify their anti-social, lazy leach criminal behaviour.
You also have to investigate social engineering policies, more precisely, individuals or groups that are directly responsible for formulating and proposing "multicultural" approaches to economic sustainability and growth.
Who are these c.unts, and why are they allowed to impose radical social engineering strategies?