The sun was bright and the sky was blue on Saturday morning as I enjoyed breakfast with a friend at my wife’s restaurant in downtown Santa Ana. We were talking about how Philadelphia Eagles running back Saquon Barkley will bounce all over the Kansas City Chiefs defense like a pinball during the Super Bowl, when the sound of faint yelling made us look outside. Street preachers, boisterous hipsters and people blasting corridos and oldies are part of the neighborhood’s soundtrack, so we went back to our chat. But the faraway noise kept getting louder and louder until it began to...