What do mean there is nothing in the concept of life that says living entities have to eat other living entities?
This is an absolute fact of life on this planet that all living organisms must consume other living organisms to survive. Animal designs that are viewed as imperfect and the constant remarks that a "God" should have made them perfect so obviously no God created them is stupid.
Another way to look at this is why waste your time on designing animals perfectly when they are just going to be eaten anyway? The comments that animal designs are just made good enough to survive long enough to reproduce and die from predation seems to be the goal intended.
Oh, I forgot there is no reason or goal in the predator/prey mechanism which supports the entire food web and there was no effort put into the sexual reproduction methods that are specific to different species.
Recycling of converting energy from predation is the only mechanism on this planet that feeds the living. Perfection does not occur in life forms because the food web of recycling energy would not be successful.
So no matter how you insist that life does not have any direction because life is so powerful that it is difficult to wipe out so it does not require any guidance is wrong.
All of the traits that are unique to each specific body plan organism that work in the predator/prey mechanism does seem to involve organization with rules. We do not observe any body plan organism that has all those special unique traits in one specific species.
We are all related in one way or another, aren't we?