Because in the end, the search for maximization of profits may not be the best way to achieve creativity.
For a time, and I still think that somehow it's the case right now, a lot of creativity can be found on: TikTok, some Discord servers, etc. etc.
But clearly, Youtube feels like TV in a way: a bunch of "professional" people rehashing the same concepts over and over: over-produced fiction, gaming stuff, react-stuff, beauty stuff, etc.
The only thing that I currently value Youtube for is the access to science stuff: 3 blue 1 brown, Veritasium, etc. etc.
Oh also Youtube has become the home for the cancer of tutorial: the video tutorials. Why cancer? Because reading is faster, searchable, indexable, etc.