The Clash (although I enjoyed them musically...albeit they were putting their thumbs into too many musical pies) were insipid amauteuristic left-wing lunatics with no clue. The Ramones and the Sex Pistols influenced more bands, but the Clash's Squeeky Wheel Marxists fans will never let on to this. 

 This is a story that needs to be told. But Marxists never stand for the truth, so I guess it is moot.