You know, this precisely was the argument used by those who opposed medical innovation and vaccinations (like in Catholic Quebec at the beginning of the 20th century).
The fact remains Terri wouldn't have survived were it not for ARTIFICAL care (like a feeding tube directly into her stomach).
Sometimes, we have to face facts that the right thing to do, no matter how painful, is "pull the plug." Otherwise, where does one stop? If life extension instead of quality of life is the primary priority of medical ethicists; why don't we just hook everyone up to machines and keep everyone alive artificially?
Sadly, Terri's gone. All that's left is the shell of her body.
You are wrong on the facts. Terri can in fact eat food but her husband forbid it and thus she is fed through a tube.
You can only pull the plug if a person is dependent on a plug. This person is not, she can survive just fine independent of machinery.
If quality of life is the determining factor, who decides what life is unfit to live?