These relatively new forms of social media (esp. past 20 years) show what most of us really are much of the time.

Especially since the 1980s there have been some approaches in movies and literature to revealing the banality of many of our conversations and social engagements. Writers and directors like Lynch, Tarantino, Richie, Waters, Anderson, Vaughn, Coppola (?), Mike Judge, &c have included very simple, normal discussions in their movies as a way of authentically furthering other aspects of the plot, unhindered by clever dialogue.

For a historical trajectory of development, see Auerbach's 'Mimesis', where one sees examples in literature of an increasing interest in selfish personal motivations. By the 1980s this developed as a focus on personal feelings, emotivisim and narcissism, even if these were nonetheless latent in people. TikTok reinforces this constant narcissistic desire for self-actualization, and is thus fundamental to the approaches in the movie, Idiocracy.

TikTok is evidence that many of us are immersed in a kind of Idiocracy, albeit an old trend. Mike Judge has commented on his approaches, noting that he writes about his own experiences. (Some of his prophetic approaches are noted here: https://www.youtube.com/watch?v=qPCHh-ipJ5U .)

It's also important to look at what Fox has done since the early 1980s.