There is plenty to worry about in the global contest between democracy and autocracy. Iran’s violent repression of antigovernment protests in January crushed the latest effort to challenge a ruthless regime. In many European countries, including Britain, Germany and France, far-right parties seem ascendant. And Donald Trump is doing what he can to undermine democracy in the United States. Yet a closer analysis shows that autocrats are often running scared of their people. And surprisingly, democracy these days seems sometimes to be held in higher esteem in the global south…