There seems to exist a downward spiral where content that is prioritized to be attention grabbing over all else gets the most clicks and then drives more content to focus on this. The quality of the content itself seems to be increasingly inconsequential and has fallen off a cliff in the face of click spam.
Anecdotal evidence 1: I used to watch youtube videos for investment ideas and now all of these streamers pump out the same low quality, not very researched content with their face plastered on top with a shocked look on their mug.
Anecdotal evidence 2: My son was shown youtube by one of our nannies (despite my rules on no youtube) and has since become semi-addicted to the most brain dead content of toys being made into knock offs of the reasonable shows he used to watch or some adult man child being a weird clown in public.
Idiocracy will be due to memes as much as genes.