QMF
You seem most concerned about the "bitterness" of those hurt by actions of the organizations and less about the reality of those actions. That is really unfortunate. My suggestion about your god questions...
Stay a JW, keep believing the comforting fantasies, and feeding them to other and recruiting more members. Believe those things until you grow old and pass. Don't let go of comforting lies for harsh reality. Wether god is real or not, wether mankind destroys themselves or not, you are better off with your head in the sand.
I want to give you an example of these actions you seem to believe aren't harmful.
Lett goes on JW broadcasting to tell all the loyal follower that the organization does not have a pedophile problem, and anyone saying different is "Apostate Lies"
Jackson is getting grilled by the ARC and admits that it is a problem .
Its a captive religion and a cult. The organization will inevitably harm members to protect the unity and illusion of the group. I think that is fair thing to be bitter over, and there are all shades of it here, I have a friend who walked away and lives a completely "worldly" life now, with no real consequences from the org. He thinks they are crooks, but I would not call him bitter as say someone who lost their entire family and social circle for merely questioning your cult.
If you believe the cult is not guilty of harm, you may as well believe in god and paradise and stop worrying about mankind, because they are all the same fairy tale. You are conditioning yourself to ignore evidence, might as well go all in.