However:
>How many people will we lose to despair that could have been helped?
Assisted death is not something reserved for mental illness, and it's dishonest to frame your comment like it is. Terminal, painful diseases are the leading reason for assisted death. In fact, many assisted death programs do not consider mental illness alone to meet the criteria of acceptance.
The whole point of these programs is that there is no other help possible. Except, maybe, enough drugs to make the person basically dead anyways. Which, in my opinion, is not "help".