This is the first thing I've read that actually increased my support for the widespread use ALPR technology. Every illegal alien in this country is a criminal, by definition.
Hopefully you've never gotten a speeding ticket, parking or similar. Because most of those are classified at the same misdemeanor level as "entering illegally", which would make you a criminal, too.
There is a big difference between overstaying a visa for a few weeks and illegal migration.