Before I start this, I don't want any hate towards this person, I won't include their user name, or the platform I got it from and if you do know leave it be but I want to talk about my issues with what they said. I don't know them.
This is really weird and reductive. I'm not saying you can't be a fan of Rhaena potentially getting Nettles' storyline even if I'm not, but the way this is framed is horrible.
Nettles specifically is George using stereotypes of black girls and women and subverting them.
Nettles is 'dark' and 'ugly' because it's a Valyrian beauty standard that is being upheld. It could very well simply be her black features that are being called ugly. Look at who says it in the books and look and who maintains it. They are all white.
Now I'm not one to say we can't have ugly characters, but I am one to impose something in the written narrative, and in this case, that plays out into George subverting racial stereotypes with Nettles. So, while she could be ugly, I also think there is a large possibility that she isn't. She could just look unambiguously black.
I'm not one to defend a white man against racism allegations, but not all the black and brown women are sexually promiscuous. George does have an orientalism issue, but let's not deny that there are characters like Missandei, Sarella, and Nymeria in the narrative. Summer Islander characters are a bit harder, but there is a real-world reason for them to be sexual, its not just George on his snow bunny arc. Their culture views it as a type of worship.
There are 3 fics under the Nettles / Addam Velayron tag, and I've read one that isn't like that. I'm not saying it's not plausible, I'm just saying out of three fics it's not that big of a deal. As for bigger Nettles fics and ships. it's a stretch to say that half are written in her own pov, but typically, her stories have a romantic arc because that's what most fanfics do. Create romantic arcs. And as someone who's read the majority of her fics (I'm being dead ass), it's not mindless sex. It's a conclusion to her romantic narrative arc about 75% of the time. Call it bias but I can't remember the last time I read a Nettles fic where the writers let her be a whore. We've failed on that mark. We have a snow bunny issue, but outside of that, it's not that serious (free my girls from the shackles of white men)
Moving on to the weird respectability politics. "Smart, tough, elegant, and not becoming the street urchin /ghetto stereotype like Nettles."
The only thing that stereotype doesn't have in common with that phrase is elegant. That's literally the only difference. I'm not American, so I'm not going to impose myself on that view, but I will speak to holding anyone to respectability politics. Black girls especially don't have to act one way to be better than others. There isn't one way to be black. That goes hand in hand with being both respectable and assimilating and 'ghetto'. It's reductive to say that anyone should be and applying the 'better' one to Rhaena and baela and the 'worse' one to Nettles is foolish and ignorant. I will have a bigger post on this soon.
As I've said countless times before, Rhaena taking Nettles' story is racist because they aren't interchangeable. Rhaena isn't black, nor is she poor or disposable within the narrative. Daemon isn't going to be miraculously proud of her. Nettles deserves her narrative. No one can cry the way Nettles does after the Battle of the Gullet. Not even Baela and Addam or Alyn. No one can have their life seen as disposable by Rhaenyra like Nettles can and no one can start the burned men but Nettles.
For the show, it doesn't make sense to take Nettles out entirely. There are way too many gaps to full when you can just add her character.
Lastly and all of this to say, you don't have to defend liking something, making stuff up is weird and acting as though it's a better choice to combine a black character and a non black character is crazy. It can just be a choice you like.
On the other hand, I want all three final girls because I can have them, and there is no reason not to.