Those that used to do that work now have government housing, foodstamps, welfare/SSD checks, medicaid, WIC's, free school lunches and a bunch of private charities to sucker...why work.
That's also why the Mexicans are up here doing it...and getting in on some of the freebies...and that's why Democrats don't want to do anything about the border and illegal immigration. They want to grow their voter base, not shrink it.
There aren't enough queers, blacks, poor white trash, communist and socialist to assure them a majority in government. That's also why the fight voter ID so hard. They are the ones that try to steal elections.