I find this, and their obsession with weak, pathetic loser "heroes" to he a staple of their culture. Anime, games, hentai... mostly full of losers and almost never any yuri.
How often do you find an actual proactive protagonist? Very, very rarely.
Comes from the cultural difference - Western heroes tend to be "people we want to be like" and so they are the proactive sort. In a western harem anime, that guy is getting with every girl.
Eastern heroes tend to be "people we could see as ourselves". And since in EVERY culture, most people are not proactive, but instead reactive cowards who could never be a hero... you get loser protagonists who are led around by the plot instead of commanding the plot.
It's why the west loves cultivation novels so much - one of the few Asian fantasies with proactive protagonists. A big difference between China and Japan is strong male presences. In Japan, the wife tends to run the household, not the husband. Not so in China.
It is also why there is so little yuri, unless the game is made for that niche - because the viewer of the expected demographic, cannot put himself in the position of either girl. They want to make scenes where they can imagine themselves.
This is why the most successful anime tend to toe the line between the two:
Dragonball: Goku and Vegeta are proactive, but they are browbeat by their wives.
Naruto: Is proactive, but lets Sakura beat him into submission at will.
Bleach: Ichigo is proactive, but gets kicked around by "not even his girlfriend" Rukia all day long.
But look at the opposite, where only one is represented:
Rosario Vampire: Does great in Japan, with a harem anime loser. Starts off okay, western viewers drop off when they realize he will never be anything but a loser who is afraid to make a move, no matter how long the series goes.
High-school DxD: The same. Doesn't do anywhere near as well in the west, once people realize he is never going to get with anyone.
On the other hand, pure badass heroes?
Aesthetica of a Rogue Hero: Utterly beloved and hailed as amazing in the west, but absolutely terrible in the east. They cannot identify with the hero, because he is a badass, so it fails.
This is all a huge reason why so many adults "grow out" of their love for anime - because the stories only work for kids after a certain point.
The inner child in you will always enjoy it, no matter what... but the love will fade into nostalgia after a time because the stories lack our desire for a real hero that can be looked up to, an ideal representation.