NEW YORK — Satire is what closes Saturday night, George S. Kaufman famously said. So how about the Broadway chances of a satire of all-American racism set on a wheezing Georgia plantation in the 1950s, replete with pragmatically sycophantic Black characters and a white overlord with a bullwhip? Magnificent, if there is any justice in the world. Director Kenny Leon’s supremely well-toned ...