As an American I've come the same conclusion. But it is a cowardly conclusion. We need to take our medicine and correct the wrong-doings of Gitmo. I don't really care if it costs a couple of hundred million dollars, that's chump change compared to the federal budget.
If a guy like Nixon can get a pardon so that the country can move forward, then we can certainly do the same for whatever ahats are culpable for setting up Gitmo in the first place. Pardon the military and politicians responsible for their misguided patriotism and then start treating these unfortunate souls like humans again as one small step towards making the US live up to its lofty ideals again.
Gitmo is already shockingly illegal or dangerously unethical; I don't see any interest by the US government to end it and take some of the heat for that.