Wow. Bravo answer PT!!!! Just....Bravo.
I am sorry you and your child have had these experiences. My heart goes out to anyone who has, including your AH. My XAH had trauma in his childhood. It was not of this sort, but was very traumatic and I do feel that since he never got the help he needed it has molded him as a person. However, it does not "cause" him to drink.
It took me years to see this, so to hear you state this so clearly is wonderful and really does show your strength.
Keep taking good care of you!!!