For a similar reason that we cull elk herds perhaps. If the population is coddled, it grows out of control, resources are consumed, and the entire population gets ill-nourished and sick - which affects the rest of the eco-system, such as the wolves that depend on the herd. Death - even premature death - is part of life. We are not here to "preserve" elk, like in some living zoo; we are here to preserve their livelihood and health - their ecosystem. And that includes suffering and death. I don't know why you ignore that. Well I have a suspicion. I suspect you're unhappy with a God who is letting you wallow in your own self-pity, and not picking you up and dusting you off, and patting you on the butt. IOW, a God that respects your free will and ability to determine your own destiny. You can do it.