Earlier this year, the Cannes Film Festival observed a heroic first: the director who won the Palme d’Or, the event’s highest honor, dedicated the prize to “all sex workers, past, present, and future.” No one familiar with the director, Sean Baker, could have been too surprised. Baker has spent his career—up to and including his Palme-laurelled latest, “Anora,” a comedy about a Brooklyn stripper—chasing American hustlers of every stripe. He became an indie darling with “Starlet” (2012), a drama set in the industrial pornucopia of the San Fernando Valley, and “Tangerine” (2015), a Los Angeles-based buddy comedy about transgender sex workers. From there, Baker ventured east for “The Florida Project” (2017), set at an Orlando day-rate motel where a woman sells sex to support herself and her daughter. Then he…