We’re starting to wonder if Mayor Zohran Mamdani has any real interest in promoting affordable housing in New York, rather than just posing on the issue: Why else would he ignore the thousands of public-housing units that sit empty for lack of funds to renovate? The city Department of Investigation just identified 6,740 apartments now warehoused because the New York City Housing Authority can’t find the cash to bring them up to code. The cost is only an estimated $52,000 per unit, far less than