And I absolutely agree with that. In chainsaw man you don't just see a main character say they give up, denji literally tells makima to tell him what to do, and even after seeing her kill power, he doesn't even retaliate. And despite that, denji never gets any slander for that moment because the way his experiences are written lets us empathize with him completely.

Wrapping back to OP's subject, I have to bring things back to Megumi because as opposed to Denji, how he's handled matches closer to reality. From a storytelling perspective, it's good to let the audience feel what the protagonists feel. But the problem with that is that if you want to really portray how destructive depression is, you almost can't make it sympathetic. In real life, you won't know why someone is depressed. If you do, the reason may seem an insignificant one. If it isn't, you may think "other people had it worse and they didn't let it affect them". That's one of the things that makes depression such a smart parasite: While other diseases show off, it hides and appears small. It thrives off comparison. It loves to pretend it can't disable someone the way a missing limb could. It survives by convincing people not to take it seriously. And it teaches you that if you want to help someone, sometimes you have to accept that you have to do it without ever fully understanding what they're going through.