Of course this isn't Atlantis, but perhaps the purpose of these videos is to stimulate the imagination. Perhaps in another time these content creators would have written a fantasy/adventure novel, like Clive Cussler. Instead we have 'fringe' YouTube videos.
The format requires the theory to not be presented as fiction, but an imaginative "what if" scenario. It doesn't require unquestioning, dogmatic belief. This is where the institutional dullards go off the rails. There is a paradigm difference they can't appreciate.
Next we'll have fact check censorship asserting that the Earth is indeed round. At this point truthiness itself has become unintentionally self-parodying.
Which is the greater faux pas? Believing in an indulgent fantasy scenario out of an over eager desire to stimulate one's imagination, or humorlessly insisting that such a fantasy is worthy of debunking?