"The problem is the gap between the dream and reality. That gap is what Martin Luther King set out to fill with his dream. To champion diversity is to champion the American dream. It's to say that if you work hard and you have great talent, you will have the same chance as anyone else to succeed," he said. "It guarantees no more than that, but that in itself is a golden guarantee. And I want that guarantee here in Britain. I want that British dream."