How to deal with narcissistics when they are family members and ex spouses?

My mother, ex-husband , and grandma are all narcissistic based on their behavior - controlling , arrogant , and selfish... they love dehumanizing and downgrading to make themselves feel good. Unfortunately, kids are involved pretaining to ex spouse.. grandma, and mother like to play victim.. all have a tendency to mistreat people when they can't get their way. Neither care about feelings or emotions of others.

Boundaries have been established between all.. all are sick and drama filled.
How to deal with narcissistics when they are family members and ex spouses?
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