there is quite a lot of Lesbian and Gay Mangas/Manhwas with incest. Am i going crazy??

Hey guuuuys, it's me… agaiiin, with another thought that I feel like I wanna get out there. Also, I wanna note that it's not just Lesbian or, well, yuri manga, but also Gay ones too that unfortunately fall under this. Now, this isn't a new thought; this has come back to me a lot. Unfortunately.

Throughout my years of searching and exploring far and wide for good lesbian, sapphic comics (including gay ones), I always seem to find something interesting or that feels like it's gonna be a nice read. Then, halfway through, I get hit with one of the leads going after their sibling or vice versa. Like, come on now, what... what the fuck? Why was this needed, and why was this even allowed in the first place? Also, what does it gotta do with the story? Is it important? Is this a life lesson for the characters and the reader to learn from? (likely not) Is this a warning for the reader or the characters to be aware of?

I'm not talking about like maybe a character has a tragic past with incest of any kind being involved, and how it affected her or his experience with how they deal with love, life, perspective of reality, or whatever. It's literally thrown in there as like a plot device in the middle of a story with lackluster research behind it or the author's secret-not-so-secret fetish, sometimes both. I know it's not just in LGBTQ manga and manhwa; it's also seen in other comic genres. It's, not gonna lie, a problem because most of the time it's fetish material and not talking about the harms of it. I see it a lot with the Lesbian, Gay, whatever Yuri/Yoai like A LOT, and I personally hate how it's been popping up more. Like, it's not only comics; it's in other media too (that one foreign show or movie I saw an ad for like 7 years ago about a guy who was in love with his male cousin, on YouTube, like...what the fuck??) like what's up with that?

I don't think this is a question anymore, more like a rant, but like I still feel like it's an important thing to notice and ask: why is fetishized incest in queer media or media at all? Really makes me sick, man. I'm just pissed off.