Immigrants, legal OR illegal, commit fewer crimes than native-born troo-bloo Americans.
Now for the real facts. There is a huge difference legal and illegal immigrants. Illegal immigrants by entering the country illegally have alreaday broken the law.
From ICE
U.S. Immigration and Customs Enforcement (ICE) agency data showed 58,626 of the 759,218 illegal immigrants living in New York City had previously been convicted of a crime or had criminal charges pending, or 7.7% of the city’s illegal migrant population. Of the 58,626 criminal migrants, 1,153 are "suspected or known gang members," the report added. The nationwide numbers largely mirror those in New York City, the data showed, with 662,586 – or 8.6% — of the 7.8 million illegal immigrants living in the United States currently having a criminal conviction or charges pending
So the illegal crime rate is over 9%; way above the national average.