The fact that American living standards have broadly stagnated, and for some segments of the population have declined, should be cause for real concern to the ruling class. America ran out of frontier when we hit the Pacific Ocean. And that changed things. Alaska and Hawaii were too far away to figure in most people’s aspirations, so for decades, it was the West Coast states and especially California that represented dreams and possibilities in the national imagination. The American dream reached its apotheosis in California. After World War II, the state became our collective tomorrow. But today, it looks more...