A theory of mine (maybe more just questions), probably thought already by someone, somewhere on the web.
But what if these refugees, migrants and immigrants view Europeans and their culture as passive, pathetic, nihilistic and weak? What if they are emboldened to commit crimes because they have so little respect for the countries, the open arms, free money/material things and people that have accepted them. What if they view governmental warnings of deportation, European prison systems and sentences as a westerner would view a day in kindergarten?
The middle east is a hard culture, strength and power are respected. One only needs to point to the dictators that kept the peace through their brutal tactics in multiple countries in the past and currently, of which many are former homes to these migrants. What if this whole issue is going to keep getting worse (assaults, terrorists attacks, refusal of cultural integration in all it's forms), until Europeans finally assert themselves. Finally what does that assertiveness look like, if and when it finally comes? What forms will it take?