You obviously did not follow the Schiavo case closely. Michael Schiavo wanted his wife, Terri, to be denied nutrition and hydration so that she would die, rather than live thirty or forty more years the way she was. Terri's parents did not want their daughter dehydrated to death and were willing to care for her for no matter how incapacitated Terri was. Terri perhaps could have improved with better medical care, but her parents wanted her not to be dehydrated to death even if she wasn't going to improve. Here's an analogy: a Down Syndrome baby may never become more intelligent, but that doesn't men it's moral to starve and dehydrate it to death. People who think Terri Schaivo was "removed from life support" simply do not know the facts about this case.
You have misstated some of the "facts" yourself.
Michael Schiavo wanted his wife, Terri, to be denied nutrition and hydration so that she would die, rather than live thirty or forty more years the way she was.
The only thing we can say for certain about Mr. Schiavo's motives (as opposed to the defamatory and speculative comments posted by some people here) is that he wanted Terri's wishes - as expressed verbally to him - to be carried out.
Terri's parents did not want their daughter dehydrated to death and were willing to care for her for no matter how incapacitated Terri was.
Her parents were given the opportunity to care for Terri and, after a very short time, "gave her back" to her husband because they couldn't handle it. This doesn't sound like people who were willing to care for her no matter how incapacitated she was.