I like these parallels. Whether or not netizens want to admit it, all these characters are being used as symbols of ideals or hopes. A lot of people aren't nearly as atheistic as they claim. I think to truly subscribe to such a thing, you'd have to make a constant, conscious effort to suspend all hope and beliefs in anything non-literal and non-immediate at all times. No one gives enough of a fuck for that, IMO. Hoping, praying and imagining comes as naturally to us as gasping when we're shocked, or being afraid of the unknown.
When we lend collective energy to a certain iconography, and associate its image to all sorts of incorporeal desires and concepts (transcendence through the digital world, self-actualization, immortality, connection) what do you think happens? In a sense, that image will take on a life of its own, and can essentially become a "god" that prevails through our mind(s). That's when funny "coincidences" start to crop up, by force of will. I suspect that the reason nothing truly batshit insane - like immediate world destruction, mass death prophecies coming true due to memes, or every single disgusting neckbeard in a certain country mysteriously procuring a cute, socially awkward girlfriend after Tomokoposting enough times - ever happens, is because, even in our constant feed of energy, we're unconsciously bound to "the line", the system keeping things (somewhat) orderly. That doesn't mean scary (or nice) things can't still happen, though. It just has to be within reason and with an equivalent amount of energy exchanged.
I think that's why it's important to be careful of what (and who) we willingly place our thoughts into. The "living in your mind rent-free" phrase can actually be far more literal than it sounds.