My mother moved in with my younger brother. She has cancer but is doing well. She is manipulating their family by being passive/aggressive. This has been her lifetime MO. This weekend she watched her granddaughter take the blame for something she did. Her granddaughter (my niece) got into tremendous trouble from her dad. My mom sat and watched and never said a word to defend her granddaughter, never took responsibility, and seemed to take pleasure in the battle. What do we do?
My boys and neices are grown and young adults, yet I try to protect them from the "bad" behavior and insensitive remarks from my mom who has dementia. I have been very honest with them all about the hardships now and her dementia and leave it up to them to visit or not visit. I see no reason for them to be burden with worry and stress of being faced with someone they no longer recognize as "Nani". I'd rather they remember her as she once was and the good times they shared with her.
Do hope another situation can be found for your mother as I fear what has already occurred is a preview to coming attractions - that will be harmful to your niece.
Jump in and speak up for that child and make the old broad apologize.
If she refuses to apologize, please explain to the little girl about her personality disorder. This is emotional abuse. Disgusting'
Were you there to observe this? If not, who gave you the story?
To your title question, as a family, don't let Mother get away with this behavior. Sounds like Brother played right into her hand. You kids need to get together and decide how to present a united front against Mother's wickedness.
Is the plan for Mother to stay with Brother, or will she be moving out at some point, perhaps after treatment is complete?