Once you accept killing as an acceptable answer to human suffering, the time will come when getting dead takes first priority, not protecting the lives of the despairing ill and disabled.
Suicides have increased at the very time the assisted suicide movement has been vigorously and prominently promoting self-killing as a proper means to alleviate suffering.
There could be nothing more cruel and abandoning to despairing people than telling them their voluntary deaths have greater value than their continuing lives.
Not Dead Yet sees clearly that assisted suicide/euthanasia discriminates invidiously against people with disabilities because it treats them as a disposable caste whose lives are not worth saving if they become suicidal.