Very good point.
DC/WB have a chance to make this Justice League cast extremely diverse.
Superman: Henry Cavill
Batman: Ben Affleck
Wonder Woman: Gal Gadot
Shazam: Dwayne Johnson
Aquaman: Jason Momoa
Green Lantern: Chadwick Boseman
Cyborg: Ray Fisher
That's a damn fine cast, and minorities are very well represented there. Except for hispanics... i wouldn't be surprised if we get a hispanic Flash as was rumored.
Marvel has introduced multiple black superheroes in their movies, but in the MCU, none of those characters are really at the forefront. Nick Fury arguably is, but he's less a superhero, more of a superspy. WB has the chance to just destroy Marvel in that regard.
There's still a lot of untapped potential regarding a minority led superhero film. Blade set the stage years ago, but WB has the opportunity to put out a minority led SUPERHERO film. Blade is a Marvel cbm, but idk if I'd argue that it's a superhero film. I guess it is though...
I don't think diversity should be the deciding factor in what characters they choose to include, but diversity is obviously a positive thing, and they have an opportunity to create such a diverse cast for JL