People tend to pick up weird nearly superstitious ideas about how to protect themselves, while skipping the bits that are actually helpful. I’m not sure that you can prevent that, it’s just the way people are.

Isn’t this the point of education though? To sift through the giant mess of information available out there and help people access the useful stuff? There will always be those, such as conspiracy theorists, who fall through the cracks but I don’t think this is a reason to just write off any and all attempts entirely. I believe most people are definitely capable of a) improving their technological literacy and b) developing safer habits with the right guidance.