Your point is that the 41 people held at Guantanamo Bay invalidate every human rights criticism made by an American? I don't follow. You don't need to think the Gitmo nether void is a good or just thing to realize that there are staggeringly larger human rights violations in the world...
Ad hominem appeal to hypocrisy (tu quoque) is not a valid argument. The pot can call the kettle black, and be objectively correct. The kettle can then call the pot black, and be objectively correct. It makes no difference if neither one subsequently goes over to the kitchen sink to take a bath in the dishwater.
