. And if little Johnny is taught that he is just another type of earthworm, what's going to stop him from beating up or even killing his fellow earthworms (children)?

(1) Humans are not dexcended from tapeworms, Nobody ever said they are.
(192) And if little Johnny is taught that he is just another type of human, what's going to stop him from beating up or even killing his fellow humans (children)? That's right, the sense of morality taught him by his parents. And did that come from the bible, where it's OK to slaughter the children of entire communities, or even all the children in the world except those of one incestuous family? Not on your nelly. The way people deal with each other has constantly evolved as the best way we can live together.