i feel both sides on this. Black actors struggle enough finding work. you can't limit their roles just because you want a white actor. If they are good for the part they deserve a chance to do the role.
at the same time though, there are plenty of original black characters that get zero shine or exposure. instead of race bending to be inclusive, why not be inclusive creatively and make a project about these black characters? That means not only do you get a black star, but more black side characters and maybe black writers too. Real inclusivity instead of tokenism.
I mean there is literally already a black superman why make another clone?