You've taken what I said wrong...
In the situation I spoke of, I was gone, a shell of a person in a hospital bed. I'd hope the smartest people in the room, my family who cares about me, with my doctor's advice, will do what's right and reasonable for me when I no longer can. Don't twist it into something else.
No, I haven't - and you are avoiding the question. You said this quite clearly:
I'm not all wrapped up with the idea that my wishes are the most important thing
That is pretty profound. From that statement, you are willing to cede your will, your God-given liberty, and your very spirit, to others. And, if that is what you truly belive, that is your choice.
However, that is not yours to impose upon others. If you chose not to carry a concealed firearm, that does not give you the power to deny others that right. If you chose not to speak out on a subject, that does not give you the power to deny others the right to speak out on that subject.
And if you decide you would not want to live as Terri lives, that does not give you the right to speak for her. The only one who should speak for Terri is Terri, unless her husband can speak for her without no apparent conflict of interest. Which, IMO, he has not even begun to do.