I suspect the politicians are trying their best to water down this effect by throwing open the doors to any/all immigration instead of using a merit-based immigration system. Which is the WORST of both worlds. The only way those shithole nations will ever improve is if their entire political system is burned down and every single person serving any role in government is killed. That was our mistake in Iraq. The 'old guard' must DIE so that the seeds of some kind of democracy at least has a chance to take root. Even then it will take at least a generation of careful stewardship for these nations to learn how to distrust all politicians all the time, and to make use of democratic principles to constrain the new evil people that will seek political power in their nation.