On its face, the question seems reasonable and rational.
I used to rationalize to myself why I would never "leave the Truth"
My number one reason was the name Jehovah. Nobody else uses it (not true) In reality, it was my personal belief that I was part of the group worshiping the one true God, and that he did have an organization. Once I personally shattered this notion, I was on my way out. It was my own curiosity, and dissatisfaction with my witness life that led to the examination.
My number two reason was "the friends" (I hadn't had bad experiences like many others on the board) Once I woke up and demanded answers to questions I had about doctrine, I was DF'd in short order and my "friends" disappeared of course. Then I finally realized they really were not my friends, but were simply people who knew my acquaintance and believed the same things as I.
The reality of it is that unless people have a good reason to question "Jehovah" or their "friends" they cannot rationally examine anything you say to them. Many leave for doctrine (jehovah) and many leave because of mistreatment (friends) But you cant force them, I would say its 99% on them to figure it out.