Limiting immigration/refugees from war-torn countries, regardless of the reason for the war-tornness, but then again especially if NATO is involved, is effective. That it is odious to some of certain ideological sensibilities is in no way an argument against the unfortunate necessity of policy based on the realities of human cognition, sentimentalities, and ultimately action. While the ideology of neoliberalism and progressivism combined, most succinctly referred to as "invade the world - invite the world", is increasingly shown to be a failure in both aspects, it is the latter half which must be corrected most immediately, because the damage is already done.
The hatred of Israel by those of the Islamic persuasion surpasses hatred of any particular NATO country, yet Israel is relatively free of these incidents in comparison with NATO countries (with the exception of those persons interspersed originally in their geography!). Why? Because Israel pursues an effective policy of self-protection while NATO countries do not. If NATO countries want to look more and more like the Middle East save Israel, they should continue to invite the Middle East. To borrow, sarcastically, some of the words of Louis Armstrong: What a wonderful world (that would be)!