Euthanasia literally means 'a good death' but it has come to mean the deliberate killing of those deemed 'better off dead' either by society in general, their relatives or doctors.
'Voluntary euthanasia' is now a very real threat in this country, and there is also pressure to put on a legal footing what is already going on - killing disabled and incapacitated people by 'withdrawing medical treatment' - meaning starving and dehydrating them to death.
Those in favour of 'voluntary' euthanasia accept the idea that incurably disabled or terminally ill people are 'right to want to die', while apparently able bodied mentally well people are 'wrong to want to die'. Those who fall into the category of those considered 'right to want to die' who are unable to express a view either way, precisely because of their incapacity are increasingly assumed to be 'better off dead.'