There’s two different things meant by “medical care” in terminal situations. There’s treatment – efforts to cure or solve the problem, and there’s merely keeping the patient comfortable until the end. These are VERY different approaches.
Hospice is basically a means of not trying to “cure” the disease, but making sure the patient has no discomfort. Hospice is covered (and highly regulated) by Medicare and Medicaid.
Generalization: people who think that patients should always be treated have never had experience with loved ones suffering debilitating disease. There’s a big difference between what Fear Itself’s wife is facing (my full sympathies go out to you), and my father-in-law, aged 93 with Alzheimer’s, incontinence, COPD, and a host of other problems. If he gets pneumonia again, we’re not going to subject him to “treatment” that will prolong non-life.