[T]he attention span for political affairs in a democracy is a limited one. The fundamental genius of a liberal democracy lies in how it restrains go… - Allen C. Guelzo

[W]hat Reconstruction succeeded in doing: it helped us avoid a renewed outbreak of civil war (which, considering the history of civil conflicts, is no small achievement); it laid the legal and constitutional foundations for a more egalitarian America, foundations that it took only sixty-five years to revitalize into the Civil Rights Movement; it restored the original balance of constitutional federalism, putting aside the states’ rights absolutism of the pre-war Southern aristocracy. But I do not say this to encourage any historical Pollyannaism about Reconstruction. That restored federal balance permitted the emergence of the first women’s voting rights legislation, the curtailing of municipal corruption, and the introduction of widespread public schooling; it also permitted the emergence of Jim Crow. But as Lincoln said, “this is a world of compensation.” The historical good and the evil, even in Reconstruction, do not come unmixed.

Anyone who sits down for a moment to think about what the alternative would have looked like—a successful breakaway Confederacy—and how that would have flowed downstream has to be with impressed with what Lincoln was able to save us from. There is in the end no intrinsic reason why the Southern Confederacy should not have achieved its independence. And if they had, that would have had serious implications for the later role the North American continent plays in world affairs. Imagine a North American continent as divided politically and economically as South America. This would take the United States off the table as a major world player, and then what would you do with the history of the 20th century?

[E]verything in the reasoning of the founders pointed inexorably toward the incompatibility of liberty and equality with slavery...