An addition might be appropriate:

# Muslims in Germany
Many people seem to consider Germany and othr parts of Europe as somehow infested by Muslim minorities who might weaken the nation's resolve.
Actually Turkish emigrants live in Germany (usually 1st to 3rd generation) in great numbers (few millions).
Many of them have a German passport.
Today, Turkish emigration to Germany is almost impossible if the Turk don#t marry Germans.

The Turks and German-Turks are no Arabs. They are partly Alevites (moderate Muslims) and msot of them come from rural, not highly developed regions of Turkey, being actually more conservative than modern Turkey at times (1st generation). The first generation is now approaching the retirement age and some of them might soon return to Turkey for a cheaper living.

The 3rd generation is not really Turkish anymore, but very often close to a stereotype that resembles the stereotype of Young black ghetto children.
Their education is on average inferior, their command of both German and Turkish often not satisfactory, they haven't been fully raised as German nor as Turk. Most of them don't appear to be prone to become terrorist.
In short: They want to have a black BMW series 3 car much more than some dozen virgins in paradise. Almost all have a German passport or are entitled to get one.

The real troublemakers are some non-EU citizens Imams from Turkey without knowledge of Germany who sometimes preach rather radical Islam which is not possible in Turkey due to the Turkish laws. We could easily send them away, as their entitlement to stay can easily be revoked in almost all cases.
The other problem group consists of convertites who tend to be (as in all religions) rather radical.