What about prisoners with life - terms (this happened recently in California), do they get the same priority on transplant lists as all other patients. A end of life cancer patient has pneumonia, do you treat the pneumonia, or do you just keep the patient comfortable with morphine?
As others have said, "life" today can be continued for decades with artificial medical interventions, but does that always mean it should be?
As has repeatedly been pointed out, those are all straw man arguments. We do not need to ration food and water. There is enough to go around. We do not need to ration antibiotics. We have plenty, and we can make more.
You have to prioritize. Do you know how the system works now? I am honestly asking too, I don't know how it does.