The fact that people have superstitions ("beliefs") at all, never mind "talk" about them among each other, is precisely where organization (religion, holy book, etc.) spring from.
It would be impossible to separate the superstitions within individual minds from their eventual organization into social clubs (religion), that's just how humans operate, they want to be part of something, together with others, for the most part. Even attacking the US Capitol over batsh-t crazy lies falls into this same kind of wanting to be part of something, even if it is utterly insane.
Whether it is formally organized or not doesn't make superstition any less of a menace to civilization or human evolution.