Confession: “As much I love Yu Yu Hakusho I hate how all of the heroes were male and there weren’t any female ones. So what are women not strong enough to fight demons too? The creator seems very sexist and how Kayko always needs to be saved too is woman-bashing. I hate Yu Yu Hakusho.”
I will concede that Keiko got in trouble several times in the show. And it is a bit eyeroll-worthy plotwise. But she did grow and become a pretty integral character.
Kuwabara had to be saved a bunch of times too though. It becomes less of a damsel convention and more of “if you hurt Yusuke’s friends he will get really pissed and destroy you” thing. It’s such a thing that Kuwabara literally fakes his own death just so Yusuke can take care of the Toguros.
Also re: Dark Tournament, Genkai in the arena and Shizuru in the sidelines kicked serious ass. Against demons. With YYH, we actually got a good range of female characters. We got to see that one of the former spirit detectives (Yusuke’s current job) was a woman.
So while it does have some of the tired damsel in distress cliches here and there, I would not say YYH is a sexist manga or anime. It’s boy-oriented, sure. It was serialized in Shounen Jump after all. But I think this OP is more trying to stir up wank then anything else.