There is a saying among disabled people that goes: "If it hurts, we know we're alive". Like most humans our natural instinct is not merely to survive but to flourish. For this we need assistance to live, not die.
Disabled people suffer so much neglect, isolation, exclusion and discrimination that some volunteer for euthanasia. But this is not the only way to address suffering. What about assistance to live?
When healthy people are suicidal, the usual response is to try to help them live better lives, not provide a solution which encourages them to die. It seems that disabled people are the only people who can be suicidal and mentally competent at the same time.
Help offered to people with suicidal feelings is often inadequate. But however strapped for cash the NHS is, the one thing they won't do is offer to finish the job off properly.