I think it has been shown through many court cases that a religion has a right to set its own dogma. If a person knowingly joins the group, they are agreeing to follow the precepts of the religion. This has been upheld as a freedom of religion issue. This being said, I don't see that new laws could be made to effect change.
What I do, however, see happening, is that the WT is becomming rather like the Puritans of old. They came to this country to have freedom of religion, because they felt that the Church of England was not "pure" any longer in its teaching. They were obviously very pious and strict. Later on, because they were such an isolated group, they began to turn their attention to destroying each other. This was very evident at the Salem witch trials.
Fear was the motivating force behind the finding of people guilty of witchcraft. If one tried to defend a person, they too could be viewed with suspicion, and have the same fate.
The same with shunning. Many shun because they will also be punished if they do not go along with it. Only now, the cases of apostacy are growing at an alarming rate. People realize that they can be df'd for merely asking a question about a past WT, or something they have heard, like the UN scandal.
Eventually, I see this as perhaps the downfall of the Society. One poster here mentioned that no longer is df'ing a last resort. It is now seen as a following of the old law code whereby a person must be punished, usually with glee by those who love to lord it over others.
Even people who they feel are repentant must be punished, thereby heaping the proper humiliation on them.
The fact that this is such a big issue is highlighted by the recent magazine articles demanding that a strict shunning policy is the only policy that God will accept.
I think that the guilt factor will send some over the edge. They simply will not be able to reconcile this with a loving creator.
We'll see what happens.