@RedDeerGuy1 Your reply to @jca gave a lot more depth to your question.
I can’t speak for everyone, yet it is important to not confuse “blamed you for being sick” and “shunned for something that is out of your control?” with people who have offered help yet have their help and advice rejected.
My ex wife has her own issues. I don’t blame her for them, I do hold her responsible for not taking care of herself and ignoring the recommendations of professionals. That is one of the frustrating things about mental health issues is that the person affected feels they know better than anyone else.
I would not be compassionate with a person with pulmonary issues that kept smoking, or a person with liver ailments that kept drinking. So when someone with mental health issues sincerely reaches out and is offered help, but then goes contrary to the suggestions of 20 people, after four or five times of that, people give up.