"Well, I am a conservative politically and an evangelical Christian and I, like millions of others, have a written document known in California as a "durable power of attorney" (or a "living will" in other states) directing my attorney in fact to see that I am NOT kept alive by force feeding and diapers for years when my brain is gone like poor Terri. [Her brain is gone G-O-N-E. Where her brain used to be, there is only spinal fluid. She has only a brain stem left.]"
First of all, there is no Durable power of attorney in Terri's case. Second, there is evidence that her brain is not gone, on the contrary, her brain is still functioning. There is also evidence that, with therapy, she could be in better shape than she is now, but she has been given no therapy.
No, let's be honest. Her brain is gone, all that is left is the brain stem. That (the brain stem) is functioning, that is why she can breathe, but the brain is gone and, absent a direct miracle of God, will not grow back.
You second statement has been false for 13 years. There was (and is) no 'evidence' that, with 'therapy', she could be in better shape. That was the unsupported contention of her doctors at the trial, but never then nor since have they offered any 'evidence' that could happen to a person with no brain. It has never yet happened to a person with no remaining brain and it will not happen here.