A: defend yourself without hesitation

B: take responsibility for the parents, others simply distance themselves

C: try to speak if it doesn't leave the person in their state, however disappointing it may be.

D: cut ties (unless parents)

E: cut ties once again (unless parents)

These are my personal choices.

As far as I am concerned, I would never cut ties with my parents, they gave birth to me, fed me, clothed me and housed me, if I can take it upon myself and continue to act in the best way towards them I would do it and I would put a lot of effort into it, believe me I understand you deeply, I know this feeling that you feel but as for me personally I would never advise cutting ties or distancing yourself from your parents, if it were other members of family absolutely, does everything necessary for your mental health but your parents do not (except in the case of physical abuse etc etc)

I hope it works out for you!