What was the cause of urban unrest in England's cities during the 1980s?

Well, without being too political (for which I approach with caution), Maggie Thatcher's Tory policies of privatisation, selling companies abroad in exchange for our own workforce, racial tensions in inner cities, and unemployment. That, and then the 1984-85 Miners Strike.. Urban unrest in parts of Liverpool and London by young blacks arose from a sense of social exclusion - a sense of being cut off from mainstream society and what it seemed to offer.