The difficulty here, as I see it, is a combination of the law of averages, and the perception of black actors with regard to awards.
The law of averages applies because most films are made by white people, for white people, featuring white people, so it follows that the majority of categories nominated at awards ceremonies are going to be to white actors for playing white roles.
The perception that appears to be coming from black actors is that they suggest that the imbalance is addressed by tokenism, and I do not believe that this is their position.
I think that black actors would appreciate bigger roles for black actors in major films.
Black actors are pragmatic enough to understand that the current systems are unlikely to change quickly, or soon, but any change has to come from a desire for change, which needs to be highlighted, and this is what I believe Spike Lee and Jada Pinkett Smith and others are doing.
I don't think anyone, especially black actors, would welcome a system that offers parts to people simply on the basis of their skin colour - and that is the crux of their argument.
Are enough roles that could be played equally well by a black or white actor within the remit of the role being offered to black actors? I suggest that this is the crux of the argument, rather than simply asking for tokenism, which simply sends equality backwards by sixty years.