Clearly you haven't lived in close proximity to these people.

They trickle in, respect no boundaries and no laws.

Now if they integrated and contributed to the regions culture and economy, that would go a long way towards their acceptance. But that's against the tenents of their religion/culture/ideology and it's demonstrated by their violence.

I'd quote Karl Popper on tolerating the intolerant, but it would be another "weak argument."

You can't drag people who insist on living by pre-medieval norms into the 21st century.