Psychologists have there own version of this (which managed to achieve a sort of respectability) in Julian Jaynes’s The Origin of Consciousness in the Breakdown of the Bicameral Mind which has the same sort of furtive/animistic fallacies are put forth to justify a questionable conclusion.
The problem is that Erich von Däniken's "science fiction" was pseudo-scientific claptrap, which he sold as the truth, that perpetuated harmful cultural stereotypes, was patronizingly racist, also plagiarized French author Robert Charroux's "The Morning of the Magicians", and he never admitted he was wrong despite mountains of indisputable evidence.
At least Hanna-Barbera framed The Flintstones as fiction. Yabba Dabba Doo!
And at least Scooby Doo's whole schtick was that supernaturalism is just creeps wearing rubber masks. Scooby Doobie Doo!
Charroux didn't write that one, he was likely influenced by it.
> an earlier French work, The Morning of the Magicians by Louis Pauwels and Jacques Bergier (1960), which is likely to have been a direct inspiration for both Charroux and Von Däniken
It could be a series of coincidences, or it could be old strains of racist anthropology, briefly suppressed by Boasian Cultural Anthropology, finding a new conspiratorial outlet.
https://diggingupancientaliens.com/episode-65-europes-only-p...
Careful clicking that YouTube link, my recommend feed is ruined now