I don't want to hurt your feelings confused, but you really can't "protect" a child from an active alcoholic drinking in their home.
The child will still feel the pain, abandonment, insecurity, and feel they aren't loved or wanted by the addict, and that it is somehow their fault.
Please focus on your own healing and that of your children.
Continuing to focus on him and his actions is not helping anything.
I'm sorry you are still in so much pain, but if you go forward in your own life
you can begin to heal.