They can't imagine not working

Economics Professor Giovanni Peri cited in The Economist

Life can be tough for immigrants in America. As a Romanian bank clerk in Atlanta puts it, to find a good job “you have to be like a wolf in the forest...able to smell out the best meat.” And if you can’t find work, don’t expect the taxpayer to bail you out. Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state. 

A new study co-authored by Giovanni Peri of UC Davis finds that in 19 of 20 countries shutting the doors entirely to foreign workers would make the native-born worse off. 

Read more at The Economist.