This!!! Also, he never says if his parents have actively tried to apologize, or make amends. If they are working a 12 step program, they would already understand they have no right to expect the other person's forgiveness. That seeking amends/apologizing does not stop the hurt and trauma they caused. He is being recklessly judgemental about his sister and ignoring the glaring faults of his parents. That's great they got sober! It doesn't erase what they did during the time they drank. Also, she was telling him about it, not asking permission. Honestly, he needs to stay in his own lane if he doesn't want to lose his sister and his sister owes her parents, especially her mom, nothing. Op, your mom is not a victim because she has to deal with the consequences of her drinking and pill use!