It is simple to me, if they really believed race swapping should not matter why is Moana live action a Polynesian girl, and not a 6+ foot tall white, blue eyes Nordic woman? Basically, why is it only white characters that get race swapped.
These people think we are stupid, they believe it with the blissful ignorance of their own foolishness.
When it comes to fiction, there are some liberties I'm ok with and others that I'm not. The Odyssey is a decidedly Greek story and a foundational document of western/European literature, and retellings need to reflect that. OTOH, take for example, "The Equalizer." Edward Woodward built the character in the '80s TV show. When Denzel Washington was cast in the role I had no issues with it. The race of the lead was not a defining characteristic of the role so much as the intellect, cunning and masculinity.
I know Stephen King is a first class jerk, but for years I followed his dark tower/gunslinger books, so when I heard it was being made into a movie, it definitely piqued my interest, then it was announced that Idris Elba was cast as the lead, Roland Deschain. Elba is a fine actor, perhaps one of the best currently working, but over the course of decades, King built the intensity of the character by referencing his, "piercing blue eyes." Further, while I wouldn't refer to King's books as culturally definitive in the way Homer's were, they do build the lead character's lineage loosely on a quasi-Arthurian mythology in a semi-parallel universe, so if you're going to develop a character by invoking, or build out from something that does have deep civilizational roots, the race-swapping becomes gratuitously ignorant, if not outright reckless.
Not sure where you got Moana as a white Nortic woman. Moana in the cartoon was voiced by Auliʻi Cravalho, who is not Nordic. She is of Chinese, Native Hawaiian, Puerto Rican, Portuguese, and Irish descent.
Moana is about a Polynesian girl. It takes place in Polynesia. Polynesia is in the South Pacific.
Moana is played by Catherine Laga’ala in the live action version. Catherine is of Polynesian descent.
https://en.wikipedia.org/wiki/Auli%CA%BBi_Cravalho
https://en.wikipedia.org/wiki/Moana_(2016_film)
https://en.wikipedia.org/wiki/Polynesia
Moana - live action 2026
https://www.yahoo.com/entertainment/movies/articles/moana-reviews-rough-dwayne-johnson-140240193.html