Is automation actually a job killer?

SACRAMENTO - Thousands of employees work at the 1 million-square-foot Amazon fulfillment center in Tracy. But there are many more, who don't get paid for the work they do. Hundreds of automated machines roving around the fulfillment center can transport a vertical shelf of items up to 750 pounds. They roam the gigantic building on a pre-calculated route, using floor sensors. It's artificial assistance, that has drastically changed how much product Amazon can bring in and ship out.