'This is why people are so angry': Tech giants like Google, Facebook, and Uber built their empires on the backs of contractors. A pandemic is showing just how horrifically that model failed American workers.

· Over the course of the last decade, the tech industry has spurred the rise of the gig economy. 
· "Gig economy" has since become something of a catch-all phrase to describe many sorts of non-standard work: independent contracting, temping, or working for a third-party contract firm. 
· Most companies in the tech world...