When you make money by handling other people's money you'd best make sure their money does not disappear. The greedheads in New York and elsewhere forgot that you can't make your product disappear if you have only one product.
New York will find something else to do. The rest of the country is slowlty following suit by eliminating any manual arts classes from schools. America will become a country that uses foreign labor for menial tasks as well as for the high end technical tasks.
Does anyone remember Rome? How about the caliphate? They brought in foreign labor, and something happened to both.