The problem with your argument is that New York City IS one one of the safest big cities in the Country, if not the world, with a violent crime rate that is significantly lower than large "red-state" cities like Dallas-Fort Worth, Houston, Phoenix, Orlando, Jacksonville, Tampa-St. Petersburg, Norfolk, St. Louis, Tulsa, etc. I suspect that the low violent crime rate has less to do with gun control (the criminal element doesn't seem to have problem finding guns), but rather, the police crack-down on quality of life crimes and the unconstitutional "stop and frisk" policy that nabs bad guys before they are really bad.
“The problem with your argument is that New York City IS one of the safest cities in the Country”
Not so, per CityRating.com “The city violent crime rate for New York in 2010 was higher than the national violent crime rate average by 44.11%,”