Having been there, most of us can see that the idea that "Jehovah" is God, and a group that uses the name and even carries the name as a badge of honor (Jehovah's Witnesses) have a very deep level of belief in the religion and that virtually anything that tries to upset the belief causes great cognitive dissonance.
To even suggest that Witnesses of [the named God] are wrong is just so heavy on their dissonance. To suggest that a group of people that carries the name of their God are misleading is like suggesting that everything they know is wrong, gravity doesn't exist, up is down, the sun exploded.
I am not asking for debate on whether God is "Jehovah" or "YHWH" or "Yaweh" or whether the Bible is the Word of God. I am just rambling a bit because in many cases, such as mine, some cannot even get past this deepest level in ANY discussion with our JW loved ones. To argue against the Bible is to argue against "Jehovah" and to argue against the WT's take on the Bible is to argue against a people that carry the name of God with honor.
In some cases, such as mine, we are in for the long haul to help our loved one to realize they are in a dangerous mind control cult. We have to find non-threatening ways to penetrate the deep level of belief in anything WTS says. I use everyday conversations to make my wife think. She knows that college/education is extremely valuable to get by in today's world, she is upset at newstories of robbing people of their rights or making women secondary citizens to men. I encourage her independent thinking. I strike nerves on her dissonance but try to keep her religion out of it.
I will be rereading RELEASING THE BONDS again this fall. It has been the best book I have found to help in the "long haul" case I have. To help a person who won't let anything upset their deepest level of belief ("Jehovah" is God, WTS owns the patent on "Jehovah") it is necessary to reach the true personality beyond the cult personality. It is necessary to work on their positive thoughts of who they would be without the group or what they would "correct" about the group (implying cautiously that WTS is "wrong").
What this thread is about: What thoughts do you have on penetrating a JW's deepest level of belief that "Jehovah" as defined by WTS is God and WTS must be "right" because they carry HIS name?