ON A THURSDAY NIGHT LATE LAST YEAR, A DOZEN OR SO PEOPLE GATHERED IN THE WOMEN’s Building, a community center in San Francisco’s Mission District, to attend an employment-law seminar hosted by the Tech Workers Coalition (TWC). The group, founded five years ago, helps organize workers and trains them to ask for better conditions, treatment, and pay across the booming technology industry. This particular gathering drew an Uber driver, a contractor with Apple, a former Google employee, and two people from Square, the mobile-payments system. Beth Ross, one of the Bay Area’s fiercest pro-labor attorneys, and Veena Dubal, a labor-law scholar at UC Hastings, held court before the small crowd. “There’s a lot of solidarity to be built here,” said Dubal, who was dressed in business-casual. “A worker is a…
