To bring about death of a life is always barbaric. No matter how civilized way we try to bring about death, it will always remain a barbaric way to end things, whether by the battlefield, crucifixion, shooting range, gass chamber, Gilotine, hanging, electric chair or euthanasia. No matter how we try to justify it, killing a living thing means, we can no longer tolerate it in the world of living. Professions dealing with death are the darkest professions of all, whether Judge, Assasin or Executioner.
To refrain from bieng in the care of medical technology is different, it is renunciation of the world.