The Europeans had better wise up. They need to round up all the Muslims there and ship them back to wherever they came from and ban any further Muslims from coming there.
There are only three possible scenarios here:
a) They capitulate and Europe become Muslim
b) Their society collapses into anarchy and continual civil war
c) They bite the bullet while the numbers of these barbarians are still relatively small, round them up and ship them out.
There are NO other POSSIBLE alternatives here.
Maybe they are hoping for a Bahraini version of an Islamic state where there is a secular somewhat Western area surrounded by a fundamentalist slum. They may not realize that won't work in a democracy.