Are we sure it isn't that the industry expanded and that industry expansion massively targets the easiest profits?
Like, if you go back to the golden era and look at the total number of animes that were being produced per season, I am willing to bet that it was 10% of what is produced per season today.
Also like, I don't completely hate the adaptation stuff? Adaptations can be very good. Delicious in Dungeon. Land of the Lustrous. Etc.
I feel like we've never complained that non-animated movies adapt literature too much.
