I believe that, first of all, the treatment for suicide involves a human being caring about them, believing that they can find hope regardless of this hopeless situation they feel they are in, and embarking with them on helping them to get the help and support they need.
If you look at the reasons people give, it is not because of the symptoms of their illness. It is often because of loneliness, an inability to be in a relationship or have a job and feeling the stigma of a mental illness and its impact along those lines. If you look at the reports of why people are asking for MAID, even not for mental illness, it's almost never physical pain. It's emotional suffering. It's equally a result of living in our society where, when you have a mental illness, you can't get a good job and people abandon you.