Qanon, plus social media, plus gullible idiots, plus unscrupulous opportunists is an extremely toxic mix.
And, historically there is a sharp rise in fundamentalism whenever technology makes great progress. At the end of the Dark Ages, during the European colonial period, the Industrial Revolution and now with the rise of biotechnology, alternative energy sources and the developing possibility of extra-planetary settlements. And not just Xtian fundamentalism. Islamic and Hindu fundamentalism also rose rapidly once technology began to re-shape daily life around the world. Qanon is just a slight variation on the more conventional ways of rejecting knowledge and progress in order to force humans (backward) to traditions and systems that the fearful-faithful have come to rely on.