There were 11.3 million unauthorized immigrants in the U.S. in 2014 according to Pew Research. The population has remained essentially stable for five years, and currently makes up 3.5% of the nation’s population. The number of unauthorized immigrants peaked in 2007 at 12.2 million, when this group was 4% of the U.S. population.
Blacks are about about 13% of our population, and Hispanics about 17%, and that's just a recent change due to amnesty in the IRCA and a fluid border. Unauthorized immigrants make up 5.1% of the U.S. labor force. In the U.S. labor force, there were 8.1 million unauthorized immigrants either working or looking for work in 2012. Among the states, Nevada (10%), California (9%), Texas (9%) and New Jersey (8%) had the highest shares of unauthorized immigrants in their labor forces.
Since these people all have a better chance for the good life in the U.S. than their home countries, of course they fall into the arms of the party that welcomes them. But they don’t look behind the curtain.