Fact.
So you keep saying.
In 1860 the Deep South exported ~$200 million in cotton, about half of total US exports in 1860.
The Upper South and Border South states also produced exports, notably tobacco the 2nd largest.
But it's important first to remember that half of these exports shipped from New Orleans, not New York, and that the return of imports first to New York was a function of NY's central location for railroads, canals & coastal shipping to other regions, plus its huge infrastructure of harbors, warehousing, banking, insurance and... ahem, unmatched recreation for sailors.
More important is the fact that except for cotton, everything classified as "Southern products" turned out in 1861 to be produced in Union states, especially the number 2 "Southern export", tobacco.
When Confederate tobacco was deleted in 1861, tobacco exports fell only 15%.
Other alleged "Southern products" like hops and clover seed, multiplied exports in 1861.
Point is, regardless of how often DiogenesLamp posts them, his claims about "Southern exports" paying, what is it now, 80% of US tariff revenues? -- that's just bogus.
Fifty percent is about right, but even there, remember the North and West "exported" hundreds of millions of dollars (from railroads to beef) per year to the South.
In those "exports" the North & West earned currency from the South to pay for the vast majority of foreign imports.
Further, remember the 1860 total US GDP was $4.4 billion dollars, so the $200 million which DiogenesLamp thinks sooooo important were actually only 5% of the US economy, or less than the amount of a typical recession or panic of the time -- meaning hardly reason enough to start a war.
Finally consider the stated purpose of the new Republican Morrill Tariff was to vastly reduce US dependence on foreign imports by protecting US manufacturers.
How can we then claim that Republicans "started Civil War" to protect the very imports their new Morrill Tariff was intended to vastly reduce?