Although I might not agree with her, it's not up to me to agree or not. The girl wrote a book and was interviewed several times. She got caught up in what's known as the 'health care system', which doesn't work very well with mental issues and proves itself being quite destructive. There's more to this story than meets the eye. Her parents are probably sheeple, like most other people are. They trusted the system and lost their daughter.
I was sexually abused for more than 25 years so that shows I'm not a quitter since I'm still around and stronger than ever. But not everyone's the same. I never got help from a pro, which probably is a blessing.I do not agree with her parents, with the doctors nor her own decision but let's not forget this is also an ultimate expression of free will. But like said: there's more than meets the eye.