If you think this is "a license to kill," your real beef is either with the fundamental concept of a living will OR with the institution of marriage.
The Schiavo case is indeed a life issue because it was about when a person gets the right to decide to kill a living person. ... It's a much bigger issue than your personal views of marriage.
Well, there we have it. Apparently, we have differing views of marriage. Referring to Mr. and Mrs. Schiavo as "a person" and "[another] person" implies their marriage is irrelevant to the case.
My "personal views of marriage" come from the Bible. If the Schiavos had a church wedding with God and a Bible and vows and all that, let's just say "words mean things."
When the day comes that a court says a husband needs another piece of paper before he can speak on behalf of his wife in her hour of need, marriage is under attack on yet another front.
Your logic is precisely that of the pro-abortionists: Who else should speak for the unborn baby if not the mother?