I have lost contact with dubs and non-dubs as a result of being a JW.
On the non-dub side: my father's parents were worldly...we had very little to do with them as a result. When my parents divorced, this gave my mother an even better excuse to keep us away from them. They both passed away in the mid to late 1980's. I did not really know them. I really regret not pushing and begging to see them. However, they were 'bad associations'....my mother would not let us visit with them. They might pull us from the borg. I lost contact with my father's side of the family. I have not spoken to anyone on that side in years...since my grandfather's funeral.
On the dub side: I have tried to get in contact with aunts and cousins. They are not interested. These are children I played with. As adults they cannot see past the JW teachings. To get together for a family gathering...what is the point? They want to preach to bring me back. I do not want to hear it. So I am shunned.
It is insane. It is so destructive.