Let the leaders get the full course of jail time, educate those near the bottom of the cults, and watch the cults fall apart.
I agree with this. This is where Russia went wrong in attacking the Borg. Here's how you destroy a cult such as the WTS.
1. You study in-depth exactly what human rights the cult violates and how they do so. If you don't find any, you're done. If you do, you go on to step two.
2. You establish relationships with people who can make things happen in the legal system.
3. You develop an aggressive public awareness campaign about the human rights violations the group perpetrates. You cannot attack an abusive religion without an answer to their "freedom of religion" argument. Therefore the attack has to be SUPPORTING freedom of worship. Individuals living under the authority of these types of cults are NOT free, and if you can't establish this fact your crusade is dead on arrival.
4. When public awareness is at its height, you bring the legal system to bear against the group leaders, and even if you can't lock up the individuals because of their clever legal shielding, it is important that you put a lockdown (even if only temporarily) on their operations and leave the rank and file free from the hierarchy for as long a time as you can manage.
5. You bring other abusive groups into the net of public awareness so that the first group you hit can't claim special persecution.
6. You continue the public awareness campaign, highlighting the stories of those who have been recently deprogrammed and left, as well as keeping the heat on the leaders and their methods of control in the public eye.
7. You bring legal pressure to bear on some of the other groups who abuse human rights of its members.
8. Eventually and ideally, you get this group's parent organizations (as well as that of other abusive groups like it) shut down. The rank and file are free to continue to believe and worship however they like but the organization leaders are NOT free to abuse and rule over the rank and file as if they were representatives of God's kingdom on earth. Cut off the head and the snake withers.
9. If a full legal shutdown isn't possible, pursue full legal transparency so that the public, including members of the group, have full access to the Org's methods of operations. Do not let them spin a PR campaign without a rebuttal. Do not let them use mind control again without everyone knowing it.
That's my plan at this point. Feel free to critique, edit, and revise at your pleasure.