You're going too far to the opposite extreme. The LRA isn't a "legitimate choice". Kony 2012 doesn't exist in isolation, there is a large amount of independent evidence about the LRA's crimes.
Im sure there is large amount of evidence of crime for other army too. War is like that there are crimes in it. each side is committing crime according to law of other side. (because guess what: they made the law it is what people with power do.)