I will send loving thoughts and kindness to the situation.
Alcoholics are very difficult to deal with.. Unfortunately they are helpless in their disease and come out swinging at anything they can... usually at the ones they love. It sounds like it might be a good idea for your daughter to remove herself until clear minds and hearts can prevail.
If she needs someone to talk to please email me I have gone through something similar to this. I stayed a little to long.
Blessings and REIKI love to you, your family and the situation.
Be