As often as one hears slavery described as America’s original sin, it’s apparently been far too easy for Americans to avoid considering what that means. Given the incomprehensibly massive amount of wealth generated by the extraction of billions of hours of labor annually from 15% of the population for most of the first 100 years of the nation’s existence, not to mention all the blood that was shed to protect this institution, it’s to some degree understandable that America’s dependence on a permanent underclass would only be masked, not cured, by slavery’s abolition.