why shouldn't we (end it all)?

In London their lordships in the upper house have blocked a government bill that would make assisted suicide legal in certain cases. This morning on the radio I heard a spokesperson for the disabled making a plea for just such an outcome. Later I heard a bishop saying that we had to consider the effect on society of assisted suicide, not just the interests of the individual. Curiously, as soon as we turn our attention to a sick cat or dying horse we suddenly regard it as immoral to prolong suffering. Yet when a perfectly sane and rational person who is dying a slow, agonising death wants a doctor to give him or her a way to pass away quickly and with dignity, he or she is denied it. There's no point in saying you can be made comfortable: some illnesses lead to such massive breakdowns in your body that you are certain to experience extremes of distress and trauma, regardless of pain relief. It is outrageous that these so-called moralists should continue to deny people the right to a merciful end when it is their express wish.