Seriously, he's been a white man since 1963. It would be foolish to change the character. Just keep him the way he is for Christ sake.
[spoiler]This is coming from a left leaning individual and Bernie Sanders supporter. PC culture is ruining society.[/spoiler]
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I don't mind if he's black, as long as it's a good actor. In fact, I'd quite enjoy Idris Elba as James Bond.