I joke about this with my wife and her best friend. They are Ancient Aliens fans. I say “so you are telling me that intelligent life in another galaxy had the means to travel light years to get to earth, only to build pyramids made of heavy stones?”
They tell me “no, the pyramids are a source of energy, or helps them navigate, or send communications around the globe” and again I say “they can travel across the stars presumably at or near light speed, but they need heavy stones pyramids as their GPS?”.
Then of course, there’s they “aliens need our gold”.
... and they’re always crashing somewhere...