The brand of humor David ushered into popularity with his shows, cringe, is now fully embedded in our entertainment world, and it is arguably the defining comedic style of our time. In an era of outsized global problems, it turns out there’s some funny to be had in sweating the very, very small stuff, in obsessing over a table stain , an unwanted group text, or the misuse of a phrase. David certainly didn’t invent the genre — Norman Lear and Garry Shandling are among the innovators — but he played a massive role in bringing it into vogue before...