Here's a very uncomfortable fact of ISIS that has always bothered me. Regardless of how much people might detest their beliefs, I never understood the level of violence, terror and sheer evil that they leave in their wake. Their stated goal is to have their own country/territory - but killing and maiming everyone in their path is insane. What if their goal is/was actually to create these waves of refugees, effectively creating Trojan Horses to infiltrate the West? A couple of supporting facts: first, extremists have always prescribed to the notion of world domination - even if it takes a thousand years - they play the "long game". Second, Pew Research showed that throughout the Muslim world, favourable support for ISIS exists, although minimal - anywhere from 1% up to 14% depending on the country. Canada has evaded most of the European wave through geography but we've still taken in at least 25,000 Syrians. Even at the tiniest level of 1%, there could be 250 people in our own Trojan Horse who would foster and cultivate beliefs that are totally contrary to democracy. Just a theory of course - do you think it holds any water at all?
Link: http://www.pewresearch.org/fact-tank/2015/11/17/in-nations-with-significant-muslim-populations-much-disdain-for-isis/