Orcs are men and elves who have been twisted and perverted by the evil one (Morgoth).
I can't understand why some people have to screw up a good story about good vs. evil by trying to read something into it that the author never intended.
The Lord of the Rings has nothing to do with anything going on in the world today except for the overall good vs. evil part. Getting into more detail than that is just a waste of time. It's also an indication how people have way too much time on their hands.
BTW the story of LOTR took place thousands of years before the Geneva Convention. So it doen't apply.
Ruh roh.... Define "too much". LOL.