Celebrim
Legend
Mermaids aren't real and Disney's Little Mermaid wasn't true to the source material anyway. So why get upset over Ariel's skin color?
I'm not, but if I had to guess it's because people are very sensitive to the hint of hypocrisy. People hate double standards. And people feel rightly or wrongly that if a historically person of color character (Uhuru, for example) was rewritten as a white character that there would be a huge uproar and that people's complaints about that would be treated as much more serious and much more worthy of consideration, than their own. And, well, if they are right then that is a huge problem, because essentially you are creating a grievance and even racist grievance for very little reason. Maybe people should be mature enough to not hold grievances and maybe the greater burden is on them, but maybe also we shouldn't have double standards or the appearance of them either.