[PeaRidge]

You said: "...according to figures printed in "Lifeline of the Confederacy: Confederate Blockade Running During the Civil War" Stephen Wise notes that well over 90% of all cotton exported from the U.S. left from Southern ports."

What Wise said does not have any relevance to pre-war shipping patterns.

[Non-Sequitur]

What Wise said does not have any relevance to pre-war shipping patterns.

How does it not? Prior to the rebellion virtually all imports landed in Northern ports and virtually all cotton exports left from Southern ones. How can that make sense if your claim that the South consumed the vast majority of all imports is true?