> But to paint them all indiscriminately with the pejorative term "disturbed" is to misunderstand their nature.
I meant the following definition for "disturbed":
interfere with the normal arrangement or functioning of
Sorry, I suppose I should have made it clear. I can see now why I need to be careful using this word. So to return, I connected to the fact that drugs are an intoxicant, perturbing the natural functioning of the nervous system. Using them to achieve a desirable result is... well, let us be polite: it won't become an acceptable form of "treatment". Their unpredictable nature that you mentioned is essentially the strongest argument in this debate.
> It's also a bit arrogant to put ordinary consciousness up on a pedestal as if it was the ultimate and best form of consciousness and the rest were lacking, wrong, or immoral in some way.
No, it's just logically self-contradictory to expect that by perturbing a system you may improve its behaviour. Any argument you may formulate in those terms should and will be discarded. As for other possible arguments in favour of drug use... well we only have what we have so far.
> From their perspective, it is the ordinary state of consciousness which is "disturbed", and the enlightened state of consciousness that is healthy. Who are we to insist otherwise?