This really is the best that JWs have to offer, isn't it? We used to look down on Christendom, like they were such spiritual babes, but at least they could summon up some (bad) logical arguments. The best JWs can do is "you can't prove me wrong, so I'm right..." or "you weren't there!"
Sorry, maybe I'm ruining the civility of the thread, but when you leave the JWs and their "reading the Awake magazine is like a college education!" nonsense, and are exposed to other ideas, you realize that even the above-average JWs are like kindergartners as far as logical reasoning is concerned.