The vast majority of anime is bad, especially anime made around 2012 or later.
There is 4 seasons of anime a year, and each season there is usually 25+ shows now.
Vast majority of shows each season, or literally all of them in some cases, are terrible. I'm not saying this lightly, they are soulless, created by a large group of uncooperative borderline autistic people who just wanted to get their work done.
There is some good anime, it doesn't take a long time to go through almost all of it, and then there's nothing left to watch. A lot of people basically just stop watching anime at this point, or only watch 1 or 2 new anime each season.
But they still love anime girls, that never changes.