GTTM - They can't leave their delusions/FANTASIES! It's true - trust me - I know more than a couple JWs who hang onto the HOPE they reference the bible having. I use to deliver the 'journals' - Awake, 'When Loved One Dies' to my fave sales clerks, etc., going through issues and they clung to them - can you imagine! I stopped and they hunted down other JWs to get them from - I couldn't believe.
You know the law - for every action there is an equal and opposite reaction especially with cult members. Might not help you but this is what worked for me - 'let people be who they are' - who the hell they are! Just lay down your weapons (calm your mind) and you'll be healthier. Sure made my life easier. I look for the good re/the cult and not sure that helps but if it makes them happier it makes me happy. It's considering their needs ahead of my own kind of thing.