Allison Huynh bought into Silicon Valley’s woke idealism. The co-creator of Willow Garage, a company that designed robotics and AI systems that were sold to Google, Huynh helped to raise millions of dollars for Barack Obama’s 2012 presidential campaign. She and her husband at the time, early Google programmer Scott Hassan, helped organize elaborate fundraisers and dinners for tech bigwigs. “My role was to bring in Silicon Valley people for the $50,000- and $100,000-per-plate dinners,” Huynh said. “[We] brought in [Google co-founders] Sergey [Brin], Larry [Page] and Eric [Schmidt]. Obama was a hopeful candidate who was outside of the system.”...