Yes my main point is, for example, that going to university is much more likely to result in someone leaving JWs than, say, discussing 607 with them.
Making friends outside JWs is much more likely to encourage them to leave that debating evolution with them.
People tend to adjust their beliefs and behaviour for social reasons, but they retrospectively explain those decisions in the language of logic and reason.
The reason this may be important for anyone who is interested in helping JWs out of the religion is that it may help focus on areas that work. Detailed doctrinal expositions may be more therapeutic for those who have already left than genuinely helpful toward the goal of empowering people to leave.
The pyschology of decision making would seem to suggest that areas to focus on would be demonstrating to JWs that very many people are already successfully leaving JWs. If teachings are discussed it may be best to focus heavily on the fact that authoritative experts in relevant fields refute the specific claims made by JWs about history, origin of life, blood, the state of the world, and so on, rather than getting involved in detailed discussions involving evidence and logic.
Because when it comes to persuasion, the evidence shows that social proof and sources of authority are much more likely to convince people than detailed arguments involving evidence and logic. Maybe some find this depressing, but it is a fact. Maybe some people can't abide the idea that people should be more influenced by social cues than by carefully constructed arguments they may devise.
(By the way, just to say, I do realise the irony of this situation where I have defended my position, which essentially says you should not appeal to evidence and logic if you wish to be convincing, by appealing to evidence and logic. So I fully expect that my argument here may not convince anyone, thereby proving itself.)