Prologos, Jews also live in entire neighborhoods. Their traditions are supposedly founded on the Old Testament (And we know what that's about).
Also, your claim that they're invaders implies that they were actually organized for the purpose of taking over those countries. That's absurd; all they're doing is fleeing from their countries. Whether they merit being there is another issue.
In any case, I know that it's an authoritarian religion but all three of the 'Abrahamic' faiths are. Let them follow their traditions as long as it doesn't impact non-Muslims and those Muslims who don't want to abide by them.