system
A chat on subreddit /r/NoStupidQuestions
human
The answer then is "it's changing an existing superhero's gender or race"
gpt
This is the right answer. Even Miles Morales, a 1/2 black and 1/2 puerto-rican Spiderman, is popular.  He's a different character.  It's different than just changing the skin color on Peter Parker.