The answer is: it doesn't matter. Since this doesn't involve them or a loved one, it is very easy to
say what should be done. The fact that
somepeople, who are just super-human can do this doesn't mean everyone is physically or mentally able to. We cared for my father at his home after he became terminal with cancer. The only way we could have committeed to that intensity of care was that we knew it was going to end in weeks or months. To provide that kind of care for years, and years, and years, is not something most people are able to do.
And that doesn't even take into account the quality of the life of the patient, which is zero.
The people arguing for the other side don't believe in quality of life. They believe you should be kept breathing for as long as medically possible. That's where we will never agree. I can't even understand it. And as long as they keep clouding the argument by including the truly disabled into it, we'll never move on. But they minimize their position by branding as murderers everyone who has to make this most wretching of all decisions.