Your letter is very well written and you made some excellent points.
Unfortunately, the GB will never see the letter. Even if they did read the letter, they NEVER will change their policies unless it benefits them. I worked with a true 100% narcissist several years back and did quite a bit of research on this personality disorder. The GB and some of the Elders and CO's fit the description of a narcissist to a tee. One of the signs of narcissism is, the person will never admit that they are the one who has the problem nor do they believe that they need to make changes. Note, in all of the JW talks and dramatizations (videos), it is ALWAYS the rank and files fault. Take for example the 1975 debacle. WT did give talks backing up the fact that 1975 would be a game changer. When it did not take place, they blamed the rank and file for the decisions they made. When children are abused and scarred for life, due to child molestation, and the GB shows no remorse, how much lower can you get? If you can do that to people, you can do anything.