Simple. First off the author says immigrant, not legal or illegal. These are people, either categorey, with another nation to go home to. How could they not have better participation rates? An out of work American stays in country.
I’m also not entirely sure if the number includes guest workers which in thweory should have 100% participation.
Any way i look at this i would think the spread between immigrant ansd native participation rates should be even larger.
I can see where new immigrants would be getting more jobs than born Americans do because by definition they are moving.
But in time they may fall in the same traps as Americans do, not wanting to move.
Then are the ones who got here jumping line by getting family based Green cards.