https://www.nytimes.com/interactive/2017/03/06/us/politics/undocumented-illegal-immigrants.html
http://www.cnn.com/2013/11/06/us/immigration-statistics-fast-facts/index.html
https://www.migrationpolicy.org/article/frequently-requested-statistics-immigrants-and-immigration-united-states
Also, did you know america used to pride on its acceptance of refugees and immigrants? It used to be our thing. The statue of liberty says, "Give me your tired, your poor, your huddled masses yearning to breathe free, The wretched refuse of your teeming shore". America, up until about WW2, was the "Nation of immigrants". Refugees and immigrants BUILT New York City, and every single Caucasian American was an immigrant. Remember, we weren't the first ones here.