This thing has already went through due process in the courts, with testimony from experts and consideration of that testimony by same.
It's now being tried in Congress, by baffoons, without the benefit of experts nor any testimony whatsoever. Watch as your state rights erode... and erode...
But I personally could care less about that. Removing her feeding tube is not inhumane. I've heard from enough people who actually deal with this stuff on a daily basis to be comfortable with that.