That's a pretty simplistic argument, Piers, for an event as large and copmplex as World War II. Events of that magnitude have many causes, many motivations, and many results. I don't deny that threats to the control of important resources were a large part of the Allies' motivations in fighting Nazi Germany. I also don't see anything inherently wrong with that.

But to go the next step and say that it makes no difference to working people who controls those resources, is ridiculous. [It certainly mattered to the millions who were being enslaved and murdered by Nazi Germany.] And to suggest that the working people can wrest control of those resources without themselves becoming a "ruling class" is incredibly naive, and goes against all of human history.