"This is Professor Joe Perez, sitting in for Talkback Larry. You're on the air.
"Yes? Uh huh?... Well folks, seems our next caller wants to talk about so-called Ancient Visitors. I'm game. Let's pick apart those 'gods' and their fabulous chariots.
"Ooh, they taught ancient Egyptians to build pyramids! And golly, they had some of my own ancestors scratch stick figures on a stony plateau in Peru! To help spaceships find landing pads, right? I guess the notion's barely plausible, till you ask... why?
"Why would anyone want such ridiculous 'landing pads,' when they could've had much better? Why not open a small trade college and teach our ancestors to pour cement? A few electronics classes and we could've made arc lamps and radar to guide their saucers through anything from rain to locusts!
"... What? They were here to help us? Well thanks a lot, you alien gods you! Thanks for neglecting to mention flush toilets, printing presses, democracy, or the germ theory of disease! Or ecology, leaving us to ruin half the planet before finally catching on! Hell, if someone had just shown us how to make simple glass lenses, we could've done the rest. How much ignorance and misery we'd have escaped!
"You'd credit human innovations like architecture and poetry, physics and empathy, to aliens? ... Really? ... Well I say you insult our poor foremothers and dads, who crawled from the muck, battling superstition and ignorance every step of the way, until we may at last be ready to clean up our act and look the universe in the eye. No, friend. If there were ancient astronauts, we owe them nada, zip, nothing!
"... What's that? ... Well the same to you, pal ... No, forget it. I don't want to talk to you anymore. Go worship silly, meddlesome star-gods if you want to. Next caller, please."