Nope. He is correcting the lying Northern propaganda which paints a false picture of what happened.
The North started a war with the South for money. They didn't do it for "Union". They didn't do it for "Slavery." They did it only for money, because they knew they were going to be cut out of those revenue streams which had made them rich.
They were evil, corrupt, vicious men who saw Southern independence as a threat to their wealth, and they made up all their bullshit about why they decided to attack the South, but the truth is it was to protect their money.
Why ship all their stuff to New York when 3/4 of their customers were in the South.
Again, you don't know how the packet system worked in this era. Everything was set up to trans-ship from New York. It benefitted the Northern shipping industry the most to do it that way, and yes, *THEY* ran the packet shipping too.
So where did those evil Northerners make money by shutting down King Cotton. And please tell the class how the South paid 75% of Federal taxes. Show us the data.
Yes, I understand how the packet business worked. Foreign ships could enter any American port they wanted, but they could not sail from one American port to another American port. If I'm a British shipping company and I am shipping lots of goods to Southern customers, I would ship them directly to Charleston or New Orleans, unload those goods pay the tariffs and then load cotton and take it back to jolly ol’ Liverpool. I wouldn't ship all of those goods destined for Southern customers to New York unless I really didn’t have that much Southern business and the vast majority of my customers were in the North.
So tell us how the South paid 75% of Federal taxes.