Some JW rules cannot be broken without serious consequences. The word 'CAN'T' in this list of 141 rules includes restrictions of the organization and restrictions JW's place upon themselves in an effort to please their God Jehovah.Many of the 141 rules such watching porn, reading sexual materials, sexual fantasies, etc are hard to enforce if there's no proof.
The Watchtower says, "Persons who make themselves “not of our sort” by deliberately rejecting the faith and beliefs of Jehovah’s Witnesses should appropriately be viewed and treated as are those who have been disfellowshipped for wrongdoing." Watchtower magazine, Sept 15, 1981, p 23, par 14-16 When Jehovah's Witnesses have serious doubts and when they can't be loyal to the Watchtower any more, they are routinely disfellowshipped (excommunicated) for 'apostasy'. Family members and friends are not allowed to associate with former members. Jehovah's Witnesses can't even greet a disfellowshipped JW with a simple 'Hi. This means that since 1952, the Watchtower's shunning requirement for members who leave has destroyed millions of families and close relationships.
But they will not publicly voice their viewpoints or disagree.