The labour aristocracy was a very specific product of Britain's monopoly position at the end of the last Century. The labour aristocrats derived their special privileges from the control over access to their trade, and so could command a price for their skills way above ordinary wages. Often they hired workers to do menial parts of the job. It was in this way that the labour aristocracy shared in the monopoly profits of the British Empire. They were swept away by the technological developments that undermined their control over their skill, and thereby their profession. The only equivalents today would be middle class professions and their organisations (I'm thinking of the British Medical Association, which is drawn from Doctors and also licenses Doctors).
Trade unions based upon wage labourers have often aspired to defend wages by excluding balck or women workers, but they have never had the power to do so where employers are determined to use migrant or women labour. Many different sociological studies have tried to locate the source of racial oppression within workers' organisations. And the willingness of these to endorse chauvinistic ideas certainly gives succour to that idea. But employers have never surendered their authority over hiring and firing, and reserve the right to use whatever labour they wish. -- Jim heartfield