Oh my,
If she truly is that out of it one of her family members could possibly have her court ordered into long term treatment. But if she has zero interest in stopping drinking that is just taking a bed from someone who desperately wants to get well.
Obviously she has suffered brain damage but some of it will be reversible if she stops... but she may never be the same again.
This may all be unrealistic for your situation but as a fellow codie I am always looking for some silver lining and some magical ending for these incredibly sad stories of lives destroyed by this evil disease.
Prayers your way... what are you doing for you this Christmas? Please take time to indulge yourself and enjoy the people in your life that love and care about you. Stay on the path....