I think the hate towards band members comes from...

I'm not trying to be antagonistic or anything, but I think that what people dont like is the trope. Well... I personally don't like the do over trope with someone new in the body. If it had been the original, then it would be better. Especially when you have a contrast between Daejun and the band members.

There is a nice meme in isekai reddit that said something like "the original villaines watching her sh¡t family be loving with the girl who took her body."

Like I said, they are not bad, but taste wise, I don't like that trope ... hypocritical of me since I read this, right?

People are right, no one is expected to fix anyone, but in my opinion it is hypocritical that you see the signs of suicide and then be sorry and try to fix him after he forgot about you.

I don't think it's them it's more like the way they write that. In one chapter, you find out they liked him in the past, and then the next, the author tells you that everyone saw the signs of a mind spiraling towards su¡cide.
I think if they write most of the bad things in a series of chapters and then they show how they take care of him now, with things that they knew the original liked, then it would have been better. And by things he used to like I mean, favorite cake or something, being that close in the beginning forces you to know things about someone else wether ylu want to or not.

Especially since there are indications that they knew he was selling himself to pay against his will... but then you are not sure about that, not with the way they write certain things. And I think that also plays in the hate, the do they don't they, in their knowledge of the depth of things with him selling his body almost against his will.

P.S. OMG, it's long, but I like analyzing texts and movies, videos, and stuff ... and that's not an excuse. Thanks for reading my TED talk ...