Mother is not mentally stable. Doctors say she doesn't want meds. Surgeon denied feeding tube. Can we transfer her to another hospital?

She has extremely low sodium which made her body not function well she fell in the kitchen and had open her head 6 stitches. She fell again when my brother took her to the rest room then she had some bleeding in brain. She was in icu for about a week. She is still in the hospital doctors say she fights them not to give medications so she is declining my brother became proxy and told them do what they need to do so she can survive. Doctors wanted to send her to hospice because according to them she tells them no medications however she isnt mentally stable. Surgeons refuse to put a feeding tube because they state she may take it out. However she has an IV she hasn't ripped that off. They want to send her to hospice. I don't understand if she isn't mentally stable why are they letting her make decisions on her own. We explain this to the doctor and he states "well if I tell her I'm going to give her medications and she says no then I wont give to her." I was in shock I told him you stated to us as well as we can obviously see that my mother is not in the right state of mind so why will you not go with the family and give the medications to help my mother (which if they give medications is non life threatening). However they are not giving medications nor feeding tube and hospice isn't an option. Where and how we can help her if they are not doing as we ask they are sentencing my mother to death in something that can easily be helped. We need advice and help please.