I think at some point in their life everyone will realize it is all bogus. The question is whether they will admit it and change or simply shove it back and only have it bubble up once in a while.
The true question is: to what end. Let us say you convince every JW in your congregation that at least something is fishy, it is rather easy to do, most people have already complained about finances, rule changes, youngsters, elders, changes in requirements etc, then what, if they all leave for various reasons, where would they go to. There is the fear that not everyone will agree on that answer, so most people are there to keep the peace with friends, family or at home.
It is easier if you have family and friends that have already broken off, not those that just stayed behind and pretend to go through the motions once in a while, truly, f-this I’m gone, those are the brave people. Because eventually (1, 5, 10 and 20 years later) they will be joined by their previous family and friends and be truly free. And off course tragedy could occur before you see that happen.
Nobody in my family and friends groups except my grandmother and a few truly evil people (literal child abusing psychopaths) that are still in. My grandmother has finally relented after I’ve been out over 12 years and sought contact after 20 years not talking to my mother but she is now severely demented. Few people in the congregations I was in are still there, they see what I went through and took their own conclusion eventually. JWs have a huge turnover.