It could just be appearance. Latino and Hispanic people look a lot closer to Europeans than most black people, and a lot of beauty standards are based on European aesthetics. You look at a show like Teen Titans, and a lot of the characters you will see fanart for them because they look a bit more traditionally attractive (pointed nose, thinner lips, straight hair), but you dont see nearly as uch Cyborg or Bumblebee fanart since they have more Afrocentric features (wide flat nose, bigger lips, kinky hair) which isnt seen as attractive.
The only exception I've ever seen to this has been the Boondocks with Huey, Riley, and Jazmine, but they have relatively subdued black features except for their hair, making them register not as aggressively black.
It is kind of sad how people tend to react to black protagonist a lot of the time, and it kind of makes me second guess myself when making stories since even as a black person I kind of see lighter skinned characters as the default. Even Fred Perry, a pretty good black comic artist, usually tends to makes his protagonist white instead of black. I dont really know if this will ever change, but it is kind of interesting to note.