In the article, Crabapple describes Guantanamo as "a factory consuming money, morals, and decades of human life." The counterpoint that governments (plural, not just the US) are making is that Guantanamo is now a factory for seething hatred that, given the opportunity, would produce new, fanatical warriors for violent jihad. No country wants to take these men on because of this perceived risk. Honestly, given the nature of indefinite detention, most humans probably would harbor a deep-seated hatred for their captors. I'm not saying it's right, but that's the other side of the argument.
And it's a pretty stupid argument as they come. First of all, where is the evidence that "Guantanamo is now a factory for seething hatred", I mean, in its prisoners? I don't think there is any evidence for that based on behavior of political prisoners around the world. Sure, they may have hatred, but they are I think quite unlikely to incite more violence.
Second, even if what you say is true, U.S. (government) created them. They are responsible to take care of them, for better or worse. And by "taking care" I mean giving them freedom and citizenship, if they are unable to return them to their home countries (in most cases unlikely, as they have families there).
