These are all arguments that apply to the house you live in, the blankets on your bed, the medicine you use. You are absolutely fine with all of those - you don

These are all arguments that apply to the house you live in, the blankets on your bed, the medicine you use. You are absolutely fine with all of those - you don't live in a cave, shun treatment for infectious disease, and wear furs. In fact I would go so far as to say that you probably think that modern technology is a good thing, and you are better off for it. Yet that already greatly manipulates your proposed optimal condition for the human species. So why does treating aging as a medical condition bring out this view? This seems like a very selective appeal to nature.