unfortunately for some addicts, the only way they can get back up is for them to hit rockbottom first.
if being around this parent is making you this uncomfortable because of their choice in partner, you're going to have to get them out of your life. sit them down and talk to them, tell them you can't stand to see them hurting themself like this, and that if they ever want you back in their life, they're going to have to make a choice to change. don't just suggest - demand. you need to be firm and let them know how much they are hurting you and the people around them.
talk to the rest of your family about it and get them involved. make it an intervention. if they're an alcoholic, they may be clinging to this person in the same way they're clinging to alcohol. my dad was an alcoholic throughout my childhood and it took my mother throwing him out of the house for him to clean up his act. he started attending AA meetings, getting himself back in shape, and working multiple jobs to occupy his time.
no subject
if being around this parent is making you this uncomfortable because of their choice in partner, you're going to have to get them out of your life. sit them down and talk to them, tell them you can't stand to see them hurting themself like this, and that if they ever want you back in their life, they're going to have to make a choice to change. don't just suggest - demand. you need to be firm and let them know how much they are hurting you and the people around them.
talk to the rest of your family about it and get them involved. make it an intervention. if they're an alcoholic, they may be clinging to this person in the same way they're clinging to alcohol. my dad was an alcoholic throughout my childhood and it took my mother throwing him out of the house for him to clean up his act. he started attending AA meetings, getting himself back in shape, and working multiple jobs to occupy his time.