Fear of being shunned is the worst reason I can think of for a Jehovah's Witness to stay involved. If one has grounds against the doctrinal issues, the dogma, the failed end times prophecy, the general treatment of non believers but chooses to stay involved because they fear... let me just point a few things out:
1. All One and Only True Religions use some form or degree of fear to keep the membership locked in. In my three decades of Mormonism, I came to doubt the trustworthiness of Joseph Smith five years ago. It was the fear that if I left Mormonism, I would not ever see my wife and children again after I died (assuming they made it to the highest Mormon heaven). That alone kept me locked in and active but with serious gaping, wounding doubts in Mormon theology for oh, about 5 years.
With the leading One and Only True religions, there is always some scary risk of loss of some thing that is held out over the members. Walking away from whatever One and Only True religion you happen to belong to is always a debilitating and fearful event. Do not fear. Muslims don't fear not being JW. Mormons scoff at the validity claims of the JW's. Catholics reign supreme. And you, the JW, do not fear the Mormon validity claims one bit. Nor do you fear the horrific doom of treacherous tortures prescribed for the non Muslim as outlined in the many Qur'an verses.
2. You have been conditioned to fear leaving the watchtower. If you had been born in Tehran, you would fear leaving Islam. There is no difference. If you were born in Salt Lake City, you would probably fear leaving Mormonism. If you were born in Sicily, Italy... you get the point.
3. Who is to say that God really requires his followers to shun their family if they choose to walk away from JW? Does that sound like any Omniscient god? Where is the kindness or benevolence in that act of shunning?
Just a couple of thoughts.
Noggin