A new argument against immigration: Those foreigners are making us fat. Or so reasons economist Alfred Tella, who argues that Americans would be getting more exercise if they didn't have cheap Mexican laborers to do their yard and house work. Note that the same argument would apply to any modern convenience that makes life less physically demanding, including dishwashers, gas lawn mowers, robot vacuum cleaners, remote controls, and automobiles. The basic idea is that making life harder will make it better. And this is a judgment that Tella wants to forcibly impose on middle-class Americans by making it prohibitively expensive to hire help.
I'm surprised Tella did not mention all the illegal immigrants who work in restaurants, making tasty, fattening food more affordable. Yet another reason to seal the border.