Please don't throw around psychiatric diagnoses of the people on the GB as if they were medically diagnosed conditions. I don't like them any more than you do but saying they are nutty, deluded, crazy is a far cry from saying they have a medically diagnosed condition. If they chose to, they could have you charged for defamation of character or som eother nonsense. Believe me it wouldn't be worth the hassle to you.
Also belonging to a cult's leadership that behaves in certain ways does not mean all the members have some medically diagnosed condition or that they even agree with the majority of those who band together to form a majority.
I'm not defending them here. Let me make that perfectly clear. They are unethical, immoral, manipulators and control freaks. They have learned only the negative traits of the early WT leaders and have learned nothing about the lessons that Christ recommended for his followers. They aren't Christian in any sense of the word. They are like the Scribes and Pharisees that Christ warned about.
I suspect many at Bethel leave because they see the unethical, cruel, unloving and manipulative way they are treated.
I suspect many of those who were sent home are more than glad to be out of there and wouldn't go back for anything.