Earlier quoted context omitted.
I have a genetic disorder. At the time I attempted suicide, I was undiagnosed. In part for that reason, I ended up with severe low blood sugar while also under severe social duress. The short version is that relatives who knew the man I was arguing with had molested me as a child were telling me to "behave" instead of telling him to stfu. The severe low blood sugar interfered with my plans to slash my wrists. Had I b…
Severe duress often cannot be clearly distinguished from "mental illness" I 100% agree with this in terms of its accuracy in describing the symptoms. And I do not think mental illness should be stigmatized any more than other illnesses should be (which is not at all). The key though is that once mental illness occurs, rationality goes out the window. To a large extent causality goes out the window. You can't persuade…
A minor nitpick: In UK law we have the Mental Capacity Act. People must not be seen as lacking capacity to make decisions just because they have a mental health illness. Even someone detained against their will under section of the Mental Health Act can make decisions about their care.
But your point - "People with major depression and suicidal thinking probably lack capacity to make a rational decision about suicide" is true.