First, I am choosing to live in New York to exactly the same degree that those immigrant workers are choosing to live in LA, second, I am an immigrant worker myself, and third, as I pointed out, cost of living in LA is very similar to NY.
If you want to argue on facts, let's hear something other than "you are spoiled and don't know what you are talking about".
15 US$ * 50h/week * 48weeks/year = 36,000 U.S. dollars, I had a single apartment at 1050$ per month and a car while making 38k so I know it's reasonable to make it like that. Now having a wife and kids on that is not going to happen in that area but NY is more a place for the young or the rich.
Edit: 36k = 28k take home so about a grand a month after rent.
PS: Trying to make it on 15$ an hour in NY, NY might seem stupid, but a good internship can be worth it.
If you work between lower manhattan and 33rd st, you can live in Jersey City and rent a huge 3 bedroom for $1500 ($500 split 3 ways). Commute time is 15-25 minutes.