Scully:
In legal defense cases, they always fall back on the excuse that shunning is a decision that individuals make of their own volition, nobody forces them to shun.
Well, it is a fact that the organization encourages JW's to shun
Take a look at the God's "Love" book, pages 207 & 208:
How should we treat a disfellowshipped person? The Bible says: “Stop keeping company with anyone called a brother who is sexually immoral or a greedy person or an idolater or a reviler or a drunkard or an extortioner, not even eating with such a man.” (1 Corinthians 5:11) Regarding everyone who “does not remain in the teaching of the Christ,” we read: “Do not receive him into your homes or say a greeting to him. For the one who says a greeting to him is a sharer in his wicked works.” (2 John 9-11) We do not have spiritual or social fellowship withdisfellowshipped ones. The Watchtower of September 15, 1981, page 25, stated: “A simple ‘Hello’ to someone can be the first step that develops into a conversation and maybe even a friendship. Would we want to take that first step with a disfellowshiped person?”
Is strict avoidance really necessary? Yes, for several reasons. First, it is a matter of loyalty to God and his Word. We obey Jehovah not only when it is convenient but also when doing so presents real challenges. Love for God moves us to obey all his commandments, recognizing that he is just and loving and that his laws promote the greatest good. (Isaiah 48:17; 1 John 5:3) Second, withdrawing from an unrepentant wrongdoer protects us and the rest of the congregation from spiritual and moral contamination and upholds the congregation’s good name. (1 Corinthians 5:6, 7) Third, our firm stand for Bible principles may even benefit the disfellowshipped one. By supporting the decision of the judicial committee, we may touch the heart of a wrongdoer who thus far has failed to respond to the efforts of the elders to assist him. Losing precious fellowship with loved ones may help him to come “to his senses,” see the seriousness of his wrong, and take steps to return to Jehovah.—Luke 15:17.