Interesting factoid: habitual criminals are 1% of the population and commit 99% of all crime.
There are twice as many criminals per capita among illegal aliens as there are criminals among citizens.
Habitual Criminals regularly commit crimes
Non criminals may have committed a crime, but they learn from their mistakes and do not re-offend.
100% of illegal aliens have committed a crime by bypassing the legal immigration process or letting their Visas expire while still in the country.
Legal immigrants follow the rules and came into the country legally through the legal immigration process, most work hard for what they have and do not appreciate those who cross the boarder illegally just to have everything handed to them.
Those who commit crimes are more likely to commit more crimes in the future.