As long as you use smart arguments, the opposite view is most than welcome. Everybody wants the same, that USA be able to clean and close this hideous and rotten page of his history.
But to declare that something "was charged with horrible crimes", when there was not even the slightest trace of a fair trial, is not an argument, is just to think that the rest of the world is plain stupid.
And to say that: "Some terrorists tell us that other guy was fantasizing with killing people so has been locked for the rest of his life and was his human-toy since them... and I don't see ANY problem with this", is just heartless cynism. What if they just lied to you?.
Currently in my country, with some thousands of evictions a day by the greedy of some "banksters" (formerly rescued by the people) a lot of people fantasize sometimes with a grand piano falling over the Minister of Finance in the most "ItchyScratchiest" way possible and that, after this, he rises and smiles with a denture of white keys, chirping birds around the head and all the stuff.
Boy, these millions of bad people should be locked and chieftly we _must_ assure that they never ever be able to join the jail band!... ;-)