What are healthy ways to tell your family you are done being in contact with them because they have betrayed you too many times?

Slowly stop talking to them. Separate yourself from them. Don't try to be happy with them and avoid them. Treat them like acquaintances rather than family or friends. If they try to hug you, kiss you on the cheek, etc. reject their gestures. Don't answer call or texts and if they ask why, tell them they've caused you enough pain and leave it at that then hang up.

Hi family, I'm sorry I'm leaving you but either you or I refused to digest your or my desires or inmformation out of laziness, or carelessness, or stubbornness, or whatever it may be. Love you goodbye kisses

You could always tell them in a neutral environment. Like at a family counselor or therapist.

Simply stop communicating with them. I wouldn't explain to them unless they specifically ask.

idk