We can import our food.  That reduces demand for labor here.  Farmers can grow crops that need little labor.  We are eating irrigated desert crops,  at the expense of salmon and any critter using water.  Irrigating deserts produces precipitated salts,  which in time poison the land.  But not until the salmon are extinct,  the birds are gone.  I have planted a dozen apple, prune and pear trees in my backyard.  Espaliered them along the cyclone fence.  I share them with moth worms and stinkbugs.  Fence jumping wildlife eats on them as well.  

The environment got more abused than the people in CA.  The argument for illegal aliens to be cheap labor while draining the rivers to where salmon are extinct,  all the while the water is subsidized and so are crops like cotton,  is just slimy greed and politics,  vote buys.  Better we import more of our food, drop the subsidies,  and give the tax money to home gardeners and community gardens,  infill the inner city food deserts with gardens.