Euthanasia and a fundamental disjunction

I believe that there is a dis-junction within the “Killing, Karma, and Caring: Euthanasia in Buddhism and Christianity” article in respects to their use of Deontological reasoning. They argue that euthanasia is bad because the use of it deprives the respect of human life and it helps individuals to be used as ends rather than means. Explicitly stated, “Human life is a basic good in itself rather than as a means to an end, whether that end be conceived of as life of a certain minimum ‘quality’ or the good of the state or anything else” (267) This belief in means rather than ends as the proper way to treat humans is one of the fundamental beliefs of deontologists. However, they continue down the page to speak against autonomy, “Moreover, the exercise of autonomy has to be limited in order that human beings may live together in reasonable harmony” (267). Autonomy is one of the other basic important beliefs within deontology and I struggle with how the authors support their arguments through ideas contradictory to basic fundamental ethical structure. I think that autonomy is incredibly important in treating humans as means and not just ends, and maybe I just cannot separate the two within my mind.