Everybody dies. Death is as much a part of biological existence as is birth.
Is death evil? If you believe it is, why?
I don't believe that death is "natural" for humankind. Our response to it demonstrates an inbuilt need to keep on living.....even when told that we have a terminal illness. Belief in some kind of continuing life after death in some way confirms that death is an enemy for us, rather than evil. The manner of one's death may be evil, but death in itself makes no sense if we have no *program* for it. Animals seem to take it in their stride. We do not.
Certain situations make death doubly tragic especially when the life lost is a child.....or when much suffering has to be endured beforehand.
So if I understand your premise correctly, death is a result of demonic possession brought forth by sin.
If this is the case, I would have to conclude that there has been no human that has been free from sin since the Adam and Eve.
Sin is not demonic possession, but simply a loss of perfection. It's an archery term that means "to miss the mark". Humans are no longer perfect. Sickness, aging and a propensity to do the wrong thing entered their lives.....and death followed. None of which is 'natural' for us. If it was natural, we would not grieve.
I would further have to conclude that your worldview includes sin in animals, as every animal that has been born unto the earth has died.
Let's not forget about plants. They must sin as well. While many live longer than their animal counterparts, they, too, experience the evils of death and are possessed by demons.
I would also conclude that animals and plants, since they sin, are also possessed by demons.
Since ability to sin only applies to free willed beings, that would eliminate plants and animals who have a natural cycle of life and death. In their 'death', they provide billions of other creatures with food to sustain them and keep the Eco-system functioning as it was designed to. Humans had the assignment of being caretakers, zookeepers, landscape gardeners and suitable representatives of the Creator, having his qualities and attributes to assist in their role.
Free will was intended to be a gift.....but abusing it, turned it into a curse. We are in the process of learning how to drive it properly. Not all are open to doing that unfortunately. For them, the lesson is lost.
Of course, let's not forget the earth, which will ultimately be incinerated as our sun as it progresses from a yellow dwarf to a red giant. So by your logic, the earth sins and is possessed by demons.
And the stars...and...
Am I following your logic correctly?
Oh, I hope not....there is nothing wrong with the earth itself....it is still perfect despite the fact that humans keep looking for ways to destroy all life here. God promises to step in before that happens....so it must be soon. (Revelation 11:18)
For those of us who believe that God created the universe and everything in it, including the laws by which everything functions, then it stands to reason that he did not create the earth to be destroyed. It is science's opinion that our sun will be our ultimate demise, but believers have more faith in the Creator than in the musings of science.
I know that these question were not directed to me personally, but on reading your response, I felt a need to clarify a few things....
"A little knowledge is a dangerous thing" is clearly demonstrated in threads like these. A thorough knowledge of God's instruction manual clears up all questions about why we are here and what the future of mankind on this earth will be. It gives me a future that I can look forward to.