Those numbers are skewed.
Every year close to 1 million people come to this country legally and illegally.
Most of them w/no education, skills and thus start working cleaning toilets and fast food. Hence, all these "new" people right off the bat are living in the "poverty" level.
However, if you read the tone of the article --- it implies that we, the citizens of this country, are getting poorer. Not necessarily.
It's because of the increase in population from 2nd and 3rd world countries. There's a big portion of your 1.3 million right there. Lovely how people can bend statistics as much as they want to make a point. Math is fun.