Economic inequality in the country is rapidly increasing. But our libertarians are right that inequality, by itself, hardly undermines the case for liberty.
A free country is a place where everyone is getting better off, although some, because of their hard work and natural gifts, more than others. Libertarians always point to the progress of technology as benefitting us all. Everyone is living longer, or at least everyone responsible enough to attend to what we can all know about avoiding the risk factors that imperil our health. In our march toward indefinite longevity and even the Singularity—the moment in time when machines are smarter than humans— it might be reasonable to hope that few will be left behind. And almost everyone benefits from the constant improvement and plummeting cost of the “screen”—from the smart phone to the tablet and laptop to the huge flat-screened TV.