Whether it’s explicitly stated or more subtextual, Idris Elba believes that the reasoning he can’t be Bond in some people’s minds, particularly those of an older generation, has nothing to do with his acting ability. Instead, Elba feels the issue is purely about the color of his skin. That is something he can’t and wouldn’t change, but its hurtful knowing that people dismiss him for this coveted, prestigious role because of his race.
Article source: https://www.cinemablend.com/news/2475774/how-idris-elba-feels-about-the-pushback-against-him-as-james-bond