“In America,” Oscar Wilde quipped, “the young are always ready to give to those who are older than themselves the full benefits of their inexperience.” And they often do it in the pages of Rolling Stone. The magazine posted a mini-manifesto titled “Five Economic Reforms Millennials Should Be Fighting For.” Jesse A. Myerson's essay captures nearly everything the unconverted despise about left-wing youth culture, starting with the assumption that being authentically young requires being theatrically left wing. Writing with unearned familiarity and embarrassingly glib confidence in the rightness of his positions, Myerson prattles on about how “unemployment blows” and therefore...