New York City Mayor Zohran Mamdani wants New Yorkers to believe that he’s a man of principle. Asked whether he supports Israel as a Jewish state, the mayor struck a lofty pose: He “can’t support” any nation “that privileges one religion over another, whether it be Israel or Saudi Arabia or anywhere else.” Equality, he intoned, should be “enshrined in every country in the world.”Nice line for a fundraiser. It falls apart the second you open a cal…