[He knew a man with the codename of a lightning God so there you go.]

As, see. Monotheism denounces all other Gods, even other religions. Would you believe they've even had wars over it?

I believe ancient Egypt had animals and humans and hybrids of the two as their Gods. If the pokémon did indeed create this world, they are capable of some form of human-level sentience.

And in this world, who's to say the Gods didn't create humans as well?