Really the young JW's are no different to young people brought up in a Political Cult, their minds have been saturated by the rhetoric they have heard over an over again, so alternative points of view cannot enter their minds.
A number of young JW's realise it is all a Pile of Poo, but stay for family and social reasons. Rolf Furuli comes from the generation of JW's that I did, we believed most of the JW Bull, and could defend it from the Bible, not in reality of course, but we made a good job of fooling the public that we could ! I even went toe to toe with a number of Vicars and Priests in my time. All matches were drawn at around 3-3. LOL.
Today's JW's of any age could not do that, the Core/Unique Doctrines have become so VERY silly !
Those Doctrines are indefensible from Scripture.