This is a very touchy subject for sure.
Personally I dont think Race swapping should be a thing however there's been two examples of race swapping that has happened in media in the last 20 years or so that imo were a good choice.
Hermione Granger from Harry Potter - from black to white
and
Nick Fury from Marvel - from white to black
These are two memorable characters played perfectly by two good actors (for the roles they were placed in).
Of course it all falls upon the actor who potrays them.
I havent seen the remake of The Little Mermaid so I cant say much about it...except for that one song that was made new for the remake....that went viral - that was awful lol.
Anyways, there's clearly not gonna be a winner in this discussion as both arguments can be used for both good and bad reasons.
I'll just stay neutral.