By Samuel L. Leiter October 2, 2025: A small rash of serious playwrights better known as star actors has broken out recently in New York, with the recent openings of John Leguizamo's The Other American at the Public and Tim Blake Nelson's And Then We Were No More at La Mama. Burdened by one of those slippery titles needing brain Velcro to stick, it's a verbose, sporadically interesting, decidedly humorless, dystopia…