Are you claiming all living wills are invalid?
Are you claiming living wills are in contradiction to the Constitution? All I said is the Constitution is the supreme law of the land. I said nothing about living wills.
Setting aside that red herring, if there is anything to learn from the Terri Schaivo tragedy in relation to living wills, it is this: since Terri had no written directives, and was ordered to death, therefore, when we are unable to speak for ourselves, we are presumed to WANT TO DIE, unless we wrote on a piece of paper that we want to live.
Quite backwards, if you ask me. And frightening.