My point is that if God exists (especially the omnipotent God presented to us by religion), it is impossible to explain why he wouldn't help those who are suffering. It is impossible to explain why he didn't stop the Holocaust, for example. Go ahead, try to explain it. And the explanation that God works in mysterious ways isn't satisfactory; people are suffering right now and don't need mystery, they need help. The explanation that God's purpose will be revealed is also unsatisfactory; people are suffering now, and they don't need God's purpose later, and He should be able to see that. The Witnesses have their own theory, and it makes God look awfully selfish.
This is the heart of the question, it seems to me. But, look, the entire Jewish and Christian approach to the question of God has been to start with the observation that something about us and about our world is broken. We aren't right and neither is our world. How it is broken and how is comes to be fixed is precisely the stuff of the sacred writings.
Of course everybody is offended by the Jw idea that all this is a big contest between God and Satan: the elephants fight and the grass suffers, or something. But that doesn't mean we are stuck with the impossibility of the existence of God because we are stuck with the same broken world we've always had.
Or, are we to suppose that a Christian who has lost his child is not really experiencing grief?
Look, it is the witness of the Christian faith that all this -- the Holocaust, the tsunami, the 90 dead teenagers -- all of this broken world matters greatly to God. We know it matters because he joined his nature to ours and he is now inseparably human. And because of that, all of this will get fixed, has to get fixed. But that time is not this time.
Now, you're free to reject that assertion and say, "If God existed, we wouldn't have a broken world." And, indeed, such a God might have existed; but he would not have made human beings, not human beings with free will, anyway. And my problem with your theodicity argument is that it boils down to the assertion that, if God exists, then I shouldn't have free will. And I don't think we can follow there.