France has a large population of Muslims. Most have not assimilated, and sharia law is prevalent in their neighborhoods.
Further, a high percentage of them draw benefits from the French welfare system.
Both of your questions answered for France.
I suspect the pattern is consistent for most of Europe.
In the US, the city of Dearborn, Michigan, which some refer to as Dearbornistan because of the overwhelming majority of Muslims, welfare is received at an extremely high rate.
An unverified by me article today says that this town has adopted sharia law, illegal in the US
Evidence that Shariah law is really in place in these places?