Let us pause and reflect: the theory that Kalamata and Diogenes have been expounding for months, even years, rests largely on a book by a Marxist historian. Hardly. Never heard of it. Never read of it. I started to realize there was more to the story when I saw this map,
and then later saw this chart
which caused me to realize that something did not make any sense.
I deduced that there was a massive amount of money at stake with the North Losing it and the South gaining it, just from these two bits of data, and I did so independently of anyone else telling me this. I later find my ideas confirmed in other people's writings and subsequent data discoveries, but arriving at the idea for myself was all me.
Your graph showing where the tariffs were paid certainly doesn't prove that Southerners paid the tariff. It strongly suggests the opposite. Talk to an economist already. Maybe you can find one who makes house calls.
Nice ducking of the issue, though. Who were these Northern capitalists who demanded war? Names, please? Details? Do you have anything more than just your gut instinct and a Marxist theory of what must have happened?