Why use Gitmo as an example when there are plenty of other areas where you can bash Obama, like continuing many of the Executive Order programs? At least he genuinely tried to shut down Gitmo and was blocked from doing so.

I think believing a single person/president/whatever can fix all problems is wishful thinking, and indeed a system in which that was possible would likely not be a democracy.

Start by blaming all the representatives who pushed for or voted against ending the programs you don't like, and voting accordingly. Look at the voting histories of candidates rather than what they say. Look at who funds the candidates , not at what the candidates say. Actually, listen to everything other than what candidates say during election season; the game is set up in such a way that you will always be disappointed if you simply believe what is said, no matter the candidate.