You kill a god like you kill an idea. A god can't survive if nobody knows they're a god; if nobody offers tribute, or prays to, or believes in a god, they're not really a god, are they? They're just-potentially-immortal beings with some possible powers that everyone else has forgotten. Not very god-like then.
Wow - I can see all of this except the one with Artemis and Apollo. They are siblings and I don't recall a romantic myth between the two. All the others modernized their mythical personalities. the Artemis and Apollo bit was weird.
add a southern mom accent and the humor is complete