The terrible truth is that atrocities occur daily throughout the world. Secterian wars are as common as religious intolerance. Life does not have the same value in every culture and, in every society, the value of life is reletive. The world has never known a time of peace. The world has never, even, known a time without some form of what we now call "ethnic cleansing". Strong nations can object, the UN can sanction, folksingers can post angry protests on Mudcat but, without armed intervention, a lot of people are going to die.
So, unless we expect the US to become the moral policemen of the world (with the resultant morasses that entails), these threads are just blowing in the wind. All they do is give the posters the illusiion of useful activity. Well, I suppose that is better than facing the hard truth.