Yeah except that's not the problem. A small "diverse" group of hobbits (excuse me, "harfoots"), is unrealistic because if they were together and had asian, black, and white heritage, they'd just all intermingle and look very similar, they'd just all have multiple ethnicities. But some ppl being 100% white with the 100% black diversity hires makes zero sense. It's not how cultures work.
Ariel being black, I wouldn't have as much of a problem with it if the left didn't complain that Naomi Scott was too white to play Jasmine because she's biracial. My philosophy on it now is if you want more black people, make movies out of African fairy tales. Don't be taking European stories (looks at the writers of the Queen Anne movie) and race swapping people until Europeans aren't even the majority in their own stories. Because we all know if you race swap blacks or Asians or Arabs you're going to immediately be called racist. So let Africans dominate their own fairy tales (heck with all the favoritism shown toward diverse people these days, you could actually bring new stories to fame that way instead of churning out the same exact stories but making them worse somehow), let Asians dominate their own fairy tales, and let Europeans dominate their fairy tales. if some people don't want to see anything with white people in it, that's their problem. I'll watch any of the movies as long as they're watchable. Because America's melting pot of 2022 isn't accurate to Europe or Africa or Asia in the Middle Ages. It just makes stories look unrealistic.