I don’t know how to make this more clear. It’s *fiction.* And more importantly, it’s *fiction* written for a target audience who fantasizes about this sort of thing. There’s nothing wrong with a person writing fantasies that blur or obliterate lines of consent, nor fiction that writes characters who like things that are objectively wrong. It’s good, actually. So people can have a safe space (a fictional story) to live out these fantasies without putting their literal selves in danger.
And on a more literal note: your logic could be used to say that we shouldn’t let the “Santa Claus” story exist anymore because it implies children would want an old man with a sack to sneak into their home in the dead of night. OR, if you don’t like that example, it’s like saying the show Lost is wrong or bad because the characters (spoiler) end up wanting to go back to the island and no one should ever hope for their plane to crash. It’s just goofy!
I think you're right, I feel the same way, especially since Yuri is so suspicious (the idea of his obsession with Xinlu when he was a child and so on). What I mean is that the idea in general is outside of the characters themselves. If someone wants to have sex with someone else, it doesn't mean that one has the right to have sex with him whenever he wants, right?

Y’all are really worried about the morality of rape in this story when Xinlu is quoted as saying he wants to KILL Tauei and stuff his body to keep him by his side and away from Ilay (main story)? He’s a bratty psychopath. Y’all are goofy if you expected anything less than dubcon and rape from him. Context, friends. It’s a powerful thing. If you don’t like it, don’t read it.
I see comments like this under so many stories with noncon and dubcon and I just don’t get what people get out of screaming outrages about this into the void. There are tons of green flag stories with considerate tops who care about consent. Read THOSE if you can’t tolerate this kind of thing. But a lot of people (including some literal rape survivors) do actually fantasize about this kind of thing, so the genre exists.