But that is a problem of society, which is reflected in the industry and afterwards in the movies that get produced. Awards cannot change that.
Even Oscar recognition for white male superstars will not translate into a great longterm career. Almost the opposite, actually. (The "Oscar curse" has stalled many careers, due to actors asking for more money, turning down roles that they don´t consider worthy anymore or audiences just getting tired of the overexposed star). And those who did have a great career afterwards would have had it anyway.
And really, although it might be the politically correct thing to do now for every big actor to talk about the lack of diversity - that is not the core problem in Hollywood. Because in the end, Hollywood is only about one thing: money. What sells tickets. How can you get people to be interested in your product. If more films or roles for ethnic actors were successful enough you can be sure that Hollywood would plaster their schedules with them, just as they do with comic book heroes now. Remember the "blaxplotation"-wave during the 70s?
And it is only half true when Clooney says: You can only count on getting a quality role in a quality film if you´re a white male actor.
The whole truth is: only a handful of white male actors can count on that - the current A-list. Anybody else is scrambling by. Or waiting tables.
Once again, there is racism in society, and it is still a huge problem. And this problem gets reflected in movies, too. But it would be too easy to pick out Hollywood as the patsy here. As if changing Hollywood or the greenlighting of films would change society or eradicate racism. Which of course it would not.
But it seems easier for people to blame Hollywood then to look at their own behaviour.