What to do about Alcoholic Family Member..?

I live with my grandparents and mother together in one home. My mother is an alcoholic, who has depression, no job and no friends. My grandmother and grandfather take care of us, providieing us with food and shelter and laundry and everything one needs to live an everyday life. I am a senior in hs. My mother has been drinking since I was very young and divorced w my father in 2017. My mother and grandparents constantly fight over essentially everyhting. My mother is extremely aggressive, leaves messes everywhere (peeing and food) and just in general is in a very bad and abusive mind set. My grandparents have been slowly more and more unable to handle it as they’ve also been getting older. They ahve started becoming very vulgar and abusive back and in general this whole situation is so toxic. I know my mother needs to go to rehab therapy get a job and move out but she hasn’t done a single one or tried to do a single one of these things in the past 6 years. Sorry for making this so long but I’m really just asking for advice on what to do at this point. My grandparents are hesitant to kick her out or put their foot down because they wouldn’t want her dead on the street and wouldn’t even know how to get her out but i don’t know what else to do rn.