yeah, i agree - many had a lot of potential as you said but it also depends on the viewers, sometimes readers would msg the authors to add a bit more UMPH to it thus creating the toxicity, its what gets it fame i guess, green flags do get boring after some time since its the same shit everyday, but of course adding toxicity is fine to an extent just not rape or sm shit since that completely ruins it, to make it interesting you could make one of the characters possessive at the very least or sm shit but adding rape isnt justified at all imo
I'm the opposite (⊙…⊙ ) Reading stories w/ green flags or at least decent characters feels like a breathe of fresh air imo. I'd assume you only read manhwas from the "it feels as if they're dragging", since most of most of them tends to have a lot of chapters.
There are plenty of mangas that are interesting and isnt toxic, and they dont contain that much chapters, you'd feel like it's not enough. (〜 ̄△ ̄)〜 Anyway, at the end of the day it all comes down to preferences, so you do you
Most stories are about conflict. There's man vs man, man vs nature, man vs himself, man vs society, man vs the supernatural and man vs technology. So, for manga about relationships (especially the sex-driven ones), you'll see conflict (most often) between the mcs and there's always some degree of imbalance of power involved. Red-flag characters are often born from this type of story and they create a lot of drama, which many people enjoy.
Tl;dr - Because it sells better :P
A genuine question bc I just don't understand. Like what is the reason? Is it for angst, drama? I truly don't get it.
Edit: I don't mind toxicity but there's a level to this. I don't like unequal relationships. If the ML is a piece of shit, I want the MC to be equally as bad or worse. Tats for tats, you feel me? If the ML is on demon time, why is MC out here being mother Teresa of suffering? This is not suffering Olympics. Get your lick back!