Joe Lonsdale at his home in Woodside, California. Though he relocated to Austin in 2020, he keeps a residence in the Silicon Valley. (Christie Hemm Klok/For The Washington Post) Among the many frustrations that drove Joe Lonsdale from California, his home state, where he’d made a fortune launching the software company Palantir, was an afternoon seven years ago when his wife returned home shaken and out of breath. She’d taken their toddler for a walk on Market Street in San Francisco’s downtown, he recalled, and had been accosted by a group of homeless people, who screamed at her and the...