In all fairness they very well could have tried. This is NYC I imagine the demand for mental health treatment is rather high and the wait long. That is not even considering finding a provider who takes non-private insurance (it looked like the family was not prosperous). It could also be she was receiving treatment but the choice of medication was not working.
People who have adult mentally ill offspring are in a tough spot because the current system does not allow them to be confined for their own safety and the safety of others.
No argument.
But she went after the people deranged offspring was attacking.
That is where my sympathy ends.