It's basically exactly how modern folklore gets created now. Folklore has always been about communities sharing stories, remixing them, and building meaning together - the medium just changes. Before the internet, it was campfire stories, urban legends passed mouth-to-mouth, songs that got rewritten a hundred times. TikTok and other platforms just compress that process into weeks instead of decades. When millions of people can instantly see, remix, and riff on the same content at the same time, you get folklore happening at internet speed. The 'It's corn' thing is a perfect example - someone made a video, people found it funny and weirdly charming, then everyone started adding their own layers, making it part of in-group culture. That's textbook how folklore works.
What's different is the self-awareness. Younger people know they're creating folklore while it's happening. They're actively treating these trends like cultural artifacts worth preserving and building on, which older folklore usually happened more organically. But that doesn't make it less real as folklore. People are genuinely finding community through these shared references, creating meaning, and passing them along. There's a sense of "we were here when this existed" and "you had to be online to understand this." That's powerful stuff, whether it started on TikTok or around a medieval campfire. The religious-level devotion you're seeing is people craving that kind of shared culture and meaning-making, especially when they're scattered across the world instead of in the same village.