What could be more natural for a bunch of Bureaucrats that are elected by other Bureaucrats? Refugees assault EU citizens, EU citizens start buying firearms for protection, EU comes up with new firearms restrictions with the charge being lead by the rabidly anti-gun UK government.
The EU Can't or won't protect their own citizens, and is afraid they'll protect themselves.
This isn't even about Christianity vs Islam. They allow in tens of thousands of people with virtually no "reasonable and commonsense background checks" (where have we heard that one before?) and when things go wrong the first reaction is to put restrictions on the people who are victimized.
Typical government reaction. More worried about their own image than the people who elected them.