We do know what kind of people illegal aliens are. They are criminals who chose to violate the law of a foreign country by sneaking in. They have no respect for law.
They are theives. When they get here they have to steal an American iD or aquire a fake one, which isn't hard when we have several mexican subversive organizations here that help them break the law, AND with our taxes via the corrupt US gov.
Many of them are murderers and rapists. Illegals killed more people during the Iraqi war than the Iraq war did. Also the most violent bloodthirsty gangs are hispanic/latino, and are nationwide. MS13 being the most nortorious.
Illegal immigrants offer an advantage only to the democrats who pay them for thier votes, using our taxes.