As others have mentioned, increasing units without increasing infrastructure will only make things worse. NYC is great because of its transportation, subways fo

As others have mentioned, increasing units without increasing infrastructure will only make things worse. NYC is great because of its transportation, subways for intra-city and rail for the suburbs. Even then, NYC isn't perfect. The middle class can't afford to live safety in NYC. It is polarized for the rich-poor. Living in Manhattan is price-prohibitive, $2500+ for a decent one bedroom. The bronx is mostly poor with a high crime-rate. Queens/Brooklyn are polarized too. The middle class need to commute from the suburbs (NJ, upstate NY, long island/CT), with commutes of 1 hour+ each way. Fortunately the rail system can mostly handle it, but it is still a lot of time out of the day.