I'm reading some comments, reactions, etc., and I think it's wrong to state that any critical opinion is just racist, which is not true. Some comments are disgustingly racist, yes, while some other opinions are there just because you expect certain things in a remake, like the original looks of the characters, which I can understand. It's not an issue because white people think they are superior to black people, a similar outrage could happen if Cinderella had black hair or if Jasmine were Scandinavian white or if one day they do another remake and Tiana is white (some black people would make racist comments against white people, but most comments wouldn't be racist, don't you think?).
Similar reactions happen when we see this actor/actress playing a role and we think it's not the appropriate person because potato (look at the backlash Cavill received for his role as Geralt and so many other examples...). Most people trying to make this thing about racism is tiresome.
I still think that we need more diversity in fiction, specially in movies/shows for kids, but I also can understand when the looks of an iconic cartoon character drastically change in a remake, some people are going to be disappointed.
EDIT: I just remembered another recent example, Sonic, lol.