NEW YORK — People have been acquiring Diane Arbus mistaken for so long and in so numerous means that you could devote a life span to analyzing what all the fake projections expose — not about Arbus, but about her critics. It is now 50 decades considering that the Museum of Present day Artwork staged the posthumous retrospective that recognized the Arbus legend. In re-generating the retrospective at its West 20th Road gallery in New York’s Chelsea, David Zwirner (collaborating with Fraenkel Gallery) has the cultural function of this tumble on its palms. Ahead of Arbus took her possess lifestyle in 1971, she created photographic portraits of society women, crying…