May 1, 2002 8:50 a.m.Mayday, MaydayMarx lives on — in America. ach May Day, Marxists celebrate the collective ownership of the means of production. Before the Berlin Wall was chiseled into bric-a-brac, May 1 brought forth red flags, goose-stepping soldiers and ballistic missiles strapped to mobile launchers. These days, thankfully, such pageantry is limited to Havana and Pyongyang. Yet Marx's disciples may have the last laugh. Karl Marx himself would be amazed to see how much his ideas thrive here.In a study entitled, "Marxism, American Style," Mark Schmidt of the National Taxpayers Union observes that "most American adults, weaned on...