It certainly can be effective at slowing down the amount of pain and suffering under capital people have. But it does depend on circumstances. From what I know about New York, Mamdani probably won't actually be able to make any noticable change in those areas because he will be sabotaged at every opportunity. But fuck being a doomer about things, just because I think he won't make effective change doesn't mean I don't want to see it. It would be great if he successfully reduce cop budgets and put in rent controls, that will help potentially millions of people.