I'm going to ask my friends/family to unfriend my ex on facebook
Do they incentive to unfriend him?
Yes, that guy was very cruel to me.
Your family may not be aware that he was bad to you. Regardless, I hope they defend you and obey your request.
I don't care if my family knows. It's none of their business.
That's fair but they might ask about why you want them to do it.