Last fall, when New York’s business community warned that the election of a self-described democratic socialist as mayor would trigger an assault on the city’s economic engine, we were waved off as hysterical. The press assured us that Zohran Mamdani was "evolving," that his rhetoric would soften, that we should focus instead on his vague promises of "affordability." That reassurance evaporated almost instantly. Barely two weeks after his swearing-in — amid lofty rhetoric about the "warmth of collectivism" — the Mamdani administration unveiled its real agenda. Sam Levine, the newly installed commissioner of the Department of Consumer and Worker Protection...