My mother hasnt got long on this earth given her health and she is happy in the situation she is in; if she discovered the truth about the truth I dont think she would survive on the outside without the social structure she is used to, she has no friends outside of the witnesses, she has no family other than me that would support her....in other words whilst its wrong that the wool is pulled over her eyes there is no real benefit to her leaving....shes not being mistreated...other than spiritually...and shes predominantly happy in her ignorance.
I have to agree, this is the loving thing to do, and you are the better person for doing it. It's just such hard thing to fight against, the brainwashing I mean. I had a similar talk with my dad, and came to the same conclusion as you, I'm just not going to get through. At least I have some degree of involvment in my parents lives, for whatever the amount of time is, that they have left here on this earth. I feel for you, I know what you are going through.