Unions are forming at Starbucks, Apple and Google. Here’s why workers are organizing now

For decades, union membership has been on the decline. Yet in the last few months, workers have been organizing at a pace this country hasn’t seen since the Great Depression.

Amazon has captured headlines for union drives at its warehouses, including a successful effort on New York’s Staten Island. But activity is picking up elsewhere in retail and tech at big companies that are generally viewed as progressive, with no history of labor…