I once had a successful approach with a very emotional JW.
I just told her that the most natural way the true god would reveal to everyone of us is:
1) God revealing itself to you in a very personal way.
2) God says to you he have a book with more information about what to do.
3) This book of god (bible) appoints you to an earthly organization (JW's).
She accepted it.
So I made this born-in JW girl admits she gone through the opposite order:
1) One earthly organization show to her about an old book.
2) This organization said this book reveals an old mountain god.
3) This organization said this old god through this old book says this organization is the only true religion.
The first one is god directing the entire process in a loop back to him. The second one is an organization directing a loop to itself.
She realized the TTAA after that.