Your biology is a little off but all you've done is explain why they don't have a purpose. So....they still don't have a purpose which is my point. They don't have a purpose.
A counter example in this case would be to show that they do have a purpose. You have not done this. My argument still stands.
A counter example in this case would be to show that they do have a purpose. You have not done this. My argument still stands.
8000 years before Jesus, the Egyptian god Horus said, "I am the way, the truth, the life."