You know--the husband claims that she is a vegetable--which would mean that she doesn't have a clue about what is going on--and if that is true, then she isn't bothered by her parents and brother and sister wanting to be with her and help her--so he has no reason to think that TERRI IS UPSET--
The only way that her husband can claim that this is "distressing to Terri" that she is being kept alive against her wishes, would be if she IS aware of it--and if she IS aware of it, then she isn't a vegetable so therefore, he has no right to kill someone that is cognizant of what is going on---
Case closed
I like your logic, TXsleuth!