Alec MacGillis investigated Amazon’s growing influence on American standards of living in his new book, “Fulfillment: Winning and Losing in One-Click America.” He believes the upcoming vote by Amazon warehouse workers in Bessemer, AL, that will determine whether the employees will unionize, represents a turning point in the power struggle between phenomenally successful tech giants and the U.S. working class. “Working at an Amazon warehouse has really become the mass-labor option for Americans,” said MacGillis, but jobs with the company, though as physically demanding as U.S. manufacturing jobs in previous decades, pay “quite a bit less.”