Tor,
It's not the last of me. I know what it is like to be a Jehovah's Witness. I was one myself for about a decade. I also know what it is like to leave everything and everyone behind.
But I didn't leave because of any of their false doctrines or failures. My aunt was raising me during my teen years, and she was one of Jehovah's Witnesses and that is how I got mixed up with them. I had no idea I was Jewish at the time (nor why Hebrew came so naturally to me whenever the language came up in Watchtower publications--I grew up speaking a rare Jewish language called "Ladino" which is based on Hebrew). But once I learned who I was and that I got baptized while still having connections to Judaism and even the State of Israel, I made the decision to leave. I told no one, but I began preparing to leave with a set date, prepared a place for me in the real world, learned what I needed to in order to return to my people, and left exactly as I planned without looking back. One day I was a ministerial servant and regular pioneer giving a talk from the platform, the next day I had moved out of the flat I shared with my best JW friend who was like a brother to me.
No one came after me once they learned why I left. No one talked to me or looked me in the face if I ever passed them on the street. And they spread vicious rumors about why I left after I was gone and chose to believe these instead of the truth.
But I didn't leave because of anything bad they did or taught or because I predicted this horrible behavior of theirs (I knew they would handle it the way they did). No, I left because I am an honest person...or at least try to be. I also strive to be a man of honor.
It has been said that in a certain way Jews don't have "beliefs" in the same way Christians do. For Jews it is not believing in a creed with a faith free of doubt that matters. For Jews it is how you live your life day to day. To me it doesn't matter what creed you make claim to, even if you hold on to Watchtower theology. What matters is how you live your life.
It is not honest to stay in a group you are not really a part of, especially if they expect you to adhere to a creed with belief above and beyond reason. It isn't honest to them or to you, especially you, because these people won't love you unless you adhere to their creed with some static notion of belief.
The way Jews see it, living honestly is more righteous than believing in things with all your heart but living a lie. It's what you do that matters because the world is effected by your actions. True, your convictions are where things start, but many people fail to live up to their creed of choice when put the test. So what you say you believe and what you put faith in while all is peaceful is not really a good measure of what you really are when the time calls for courageous action.
Easier said than done, I know, and of course I can't really tell you what to do or judge you for staying or leaving. But you don't have to believe in God to be godly. As a Jewish proverb states: "Pray as if everything depends on God, but act as if everything depends on you." When good people don't do what is good, what is right, what is honest, God disappears. God isn't there in a person's claim to faith in God. God is there when you do (not just believe in) something good. An atheist can therefore be the greatest example of God sometimes this way while a theist can be the worst. Whatever you do, may it be more than static belief in something good, may it be doing something good.