Why was WWII our problem? Why is world hunger our problem? Developed countries and people of means in general have an obligation to the human race. If innocent people are subject to incredibly dangerous or oppressive conditions, and we can accommodate them without great loss, we should. You're acting like every citizen of a multi-billion-person region is trying to uphold the conditions of that region.
It doesn't affect you right now, but a reasonable human being should worry about it. Hey, an ethnic group is getting shoved into gas chamber and ovens....so what? Not our problem.