If an individual values being a member of the jehovahs witnesses organization, shunning is a required in various degrees. My mother is a jdub who chooses to define shunning loosely.
This is the important part, that all of us do well to understand for our own benefit sooner rather than later..... Shunning is a choice made by individual jdubs that has a specific set of consequences. Choosing not to shun is also a choice made by individual jdubs that has a specific set of consequences.
If your family is shunning you it is because they value being a member of the group more then they value you as a person. They are not being forced to shun you, they are choosing to shun you.
There is enough shit in this world. Choose to divorce yourself from cancerous people wherever and whoever they are.