More food for thought: In the movie “World Trade Center,” Oliver Stone cast a white actor for the part of a real-life Marine who’d helped to save people. That Marine was black. However, the Marine refused to speak negatively about the film: https://www.nbcnews.com/id/wbna14350685
Ariel is a fictional character. With that said, why must Hollywood remake older movies and recast the ethnicity of the character(s)? Can’t Hollywood come up with new stories?
Black Panther was fine. Original story, all-black cast, and a lot of white people went to see it.