Regardless of what political candidates tell you, these are facts regarding immigrants into the US.
Immigrants are less likely to commit crimes than natives. In the Census data on incarceration by immigration status, the incarceration rate among young males is 1.9% among immigrants, but 3.2% among native born young males. This difference is large.
Deportations of immigrants does not lower crime. Between 2008 and 2014 the Secure Communities program (what a misnomer), lead to about 450,000 deportations. A study by economists at the University of California, Davis revealed that this large deportation did not bring about any significant decline in crime. If anything, there was a small INCREASE in property crime because of the deportations. Why? Policy resources could have been more efficiently used to address property crime directly.
Restricting immigration or deportations has vast economic implications in the local labor markets. One study found that the Secure Communities program with its concomitant deportations increased the number of Americans, 65 years of age or older, who live in an institution, e.g., a nursing home, by almost 7%.
Perhaps we all ought to stop blaming immigrants for our problems and let the data lead us to effective policies.