The mentality of many who defend the org. and/or continue membership despite knowing the evidence against them is similar to that of a person who defends an abusive/controlling lover.
"Sure, he controls every aspect of my life, doesn't let me spend time with anyone else, and beats me when I do, but that's beacause he loves me."
Many times, it is the path of least resistance to be a JW, despite what the literature may tell you. It is much easier to reconcile the beliefs you were raised on than to walk your own path.
Sometimes, its just easier to stay with the abusive mate you are used to than to leave and start over. Just a thought.