Liberal City Council members are pushing a bill that would automatically enroll residents in programs to receive social benefits — even if they’re illegal immigrants. Council member Crystal Hudson is pushing the measure, which would have the Department of Social Services mine tax data, social services rolls and other government records to identify New Yorkers who quality for “city-created benefit programs” and sign them up without so much as having to file an application. The cost is expected to massive — but neither lawmakers nor Mayor Zohran Mamdani’s administration could estimate how much the auto enroll program would cost taxpayers. Council member Crystal Hudson is pushing a bill to automatically enroll New Yorkers in city benefit programs, even as neither the Council nor the Mamdani administration can say how much the mandate would cost.…