In California, you hear the same lament, constantly: The people who live there cannot afford to live there. There are taxes, sure, but that isn’t what Californians complain about, mostly. And if you’re not in technology or entertainment, there might be more opportunity elsewhere: The gentleman sitting next to me on the flight home from Los Angeles to Houston had left his native California to take a position in Texas, and like many Californian refugees, he has been plotting his return ever since...