Time to step back a bit and consider how we reached this stage of the discussion in the first place. The OP essentially quoted Matthieu Ricard's book, "The Monk and the Philosopher". It was all about Buddhism and without anything close to a "'snap out of it' ideology". Your initial comment thus came across more as
Buddhism is a simplistic 'snap out of it' ideology, which is the point I sought to refute. I'm certainly not saying 'snap out of it' is the essence of Buddhism. So in a roundabout way, we agree more than we appear to. :)
Returning to your points on PTSD, schizophrenia, BPD and ADDHD, I can state quite positively that I've read no Buddhist texts so far that discuss these disorders, let alone prescribe Buddhism as the cure. So again, we are more in agreement than not, unless of course you believe that all fear, discouragement and depression amount to PTSD, schizophrenia, BPD and ADDHD (in which case I would have to level the round trip fallacy charge at you!).
However, personally I believe modern medicine is far from understanding properly any of these disorders, and the treatment for them - mainly drugs - is an unhappy one even if that's all we have.
At the same time I also believe that there is a tendency to find the quick fix (what better than a drug) or a solution outside of ourselves (psychotherapy). Not every condition requires this sort of intervention, but there is a very strong trend and tendency to provide it and that's a pity.