We have an alcohol addiction in our family and the hardest thing is to accept that the only person who can help them is themselves. Sadly, when you try to support them, you often, in a strange way, make things worse, because it prolongs the time before they come to the awful realisation that they only have two choices, give it up, or continue until they kill themselves. Helping them makes it easier to put the decision off, because there is the food, the care, the cash is often being provided, which make sit easier to say, just one more bottle or one more fix and I'll definitely start after that.
There was a mother came on AB, must be a year ago, who said that her alcoholic son told her that all the time she kept feeling sorry for him and "supporting him" just made it easier to avoid the unpleasant consequences of having to make that decision and that her kicking him out, was the one thing that helped him come to his senses, when he realised even his Mum who he knew loved him, had had enough.