Mom had history of mental illness, multiple suicide attempts, cops called on several occasions. It was past time to get the guns out of the house.
At this point, it isn't about supporting the 2nd Amendment, RKBA, freedom, whatnot. It's about making a calculated decision that the greater threat comes not from outside the home but from someone who lives there.
And everyone in the house dismissed their fears and uncomfortable feelings about mom because they didn’t want to hurt her feelings or set her off again, after all she’d never shot them before during one of her episodes.
Normalcy bias kills.