Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I'll try to keep this brief. My girlfriend's mom got remarried when my girlfriend was 16 to a man who, honestly, isn't a great person. I'll refer to my gf as "C", the mom as "A" and the step dad as "M".

It's been around 10-11 years now and he's definitely shown his character. He's called my girlfriend a loser who will never amount to anything (to her face), he beat his son as a method of discipline, gets extremely defensive at the slightest thing (quick example : my gf's sister's boyfriend made a comment like "Oh yeah I saw a study saying listening to Christmas music on repeat can negatively effect your mental health" to which M replied "Well what college did you go to?" and basically dismissed C's sister's boyfriend's comment because he didn't go to college) puts down A with comments like "I don't think your emotionally strong enough to deal with things" and that's just the tip of the iceberg.

The thing is, any time C tells A she thinks that M is acting badly and should apologize A makes excuses and refuses to confront him about these things because she's worried he'll leave her. As a side note, she's entirely financially dependent on him. He also condemns homosexuality (C is bisexual), thinks physical discipline for children is ok, and has never apologized for anything in his life as far as I'm aware.

So since A makes excuses for him and doesn't hold him accountable I think C and I should cut them out of our lives. If A isn't willing to defend anyone against M then I see that as being ok with his actions. Any time C attempts to confront A about this, A basically either dismissed the conversation or hangs up if it's a phone call. C and A have always been very close but I don't think it's fair for A to ask C and I to just put up with M.

So AITA for wanting to cut them out or should I just deal with it since C wants to have a relationship with A?

tl;dr Girlfriend wants to have a relationship with her mom who is married to an asshole and won't stand up to his asshole-ness. I don't think it's fair and want to cut them out. AITA?

wanting to cut out my gf's mom