Thanks for using sources for your statement. I notice the closest statement to the Civil War is from 1833.
https://www.battlefields.org/learn/articles/reasons-secession is a documentary study of the reasons for secession based on the statements of the reasons for secession given by the seceding states that listed their grievances. The only state that included any concern with economic domination by the North was Georgia. The study concluded that such concerns made up 15% of Georgia's statement. So to me, the main issue with your concept is that Confederates barely mentioned economic matters at all. Slavery, States right and Lincoln election were all more prominent according to those who seceded at the time they seceded. I take them at their word.
Actually South Carolina also expressed concern over taxation and where and how much was spend on the north.
http://history.furman.edu/~benson/docs/SCaddress.htm start at chapter 3, "
Discontent and contention have moved in the bosom of the Confederacy for the last thirty-five years. During this time, South Carolina has twice called her people together in solemn Convention, to take into consideration the aggressions and unconstitutional wrongs perpetrated by the people of the North on the people of the South. These wrongs were submitted to by the people of the South, under the hope and expectation that they would be final. But such hope and expectation have proved to be vain. Instead of producing forbearance, our acquiescence has only instigated to new forms of aggression and outrage; and South Carolina, having again assembled her people in Convention, has this day dissolved her connection with the States constituting the United States.
[p2]
The one great evil, from which all other evils have flowed, is the overthrow of the Constitution of the United States. The Government of the United States is no longer the Government of Confederated Republics, but of a consolidated Democracy. It is no longer a free government, but a despotism. It is, in fact, such a Government as Great Britain attempted to set over our fathers; and which was resisted and defeated by a seven years’ struggle for independence.
[p3]
The Revolution of 1776 turned upon one great principle, self-government – and self-taxation, the criterion of self-government. Where the interests of two people united together under one Government, are different, each must have the power to protect its interests by the organization of the Government, or they cannot be free. The interests of Great Britain and of the Colonies were different and antagonistic. Great Britain was desirous of carrying out the policy of all nations towards their Colonies, of making them tributary to her wealth and power. She had vast and complicated relations with the whole world. Her policy towards her North American Colonies was to identify them with her in all these complicated relations; and to make them bear, in common with the rest of the Empire, the full burden of her obligations and necessities. She had a vast public debt; she had an European policy and an Asiatic policy, which had occasioned the accumulation of her public debt; and which kept her in continual wars. The North American Colonies saw their interests, political and commercial, sacrificed by such a policy. Their interests required that they should not be identified with the burdens and wars of the mother country. They had been settled under charters, which gave them self-government; at least so far as their property was concerned. They had taxed themselves, and had never been taxed by the Government of Great Britain. To make them a part of a consolidated Empire, the Parliament of Great Britain determined to assume the power of legislating for the Colonies in all cases whatsoever. Our ancestors resisted the pretension. They refused to be a part of the consolidated Government of Great Britain.
[p4]
The Southern States now stand exactly in the same position towards the Northern States that the Colonies did towards Great Britain. The Northern States, having the majority in Congress, claim the same power of omnipotence in legislation as the British Parliament. "The General Welfare," is the only limit to the legislation of either; and the majority in Congress, as in the British Parliament, are the sole judges of the expediency of the legislation this "General Welfare" requires. Thus, the Government of the United States has become a consolidated Government; and the people of the Southern States are compelled to meet the very despotism their fathers threw off in the Revolution of 1776.
[p5]
The consolidation of the Government of Great Britain over the Colonies, was attempted to be carried out by the taxes. The British Parliament undertook to tax the Colonies, to promote British interests. Our fathers resisted this pretension. They claimed the right of self-taxation
through their Colonial Legislatures. They were not represented in the British Parliament, and, therefore, could not rightly be taxed by its legislation. The British Government, however, offered them a representation in Parliament; but it was not sufficient to enable them to protect themselves from the majority, and they refused the offer. Between taxation without any representation, and taxation without a representation adequate to protection, there was no difference. In neither case would the Colonies tax themselves. Hence, they refused to pay the taxes laid by the British Parliament.
[p6]
And so with the Southern States, towards the Northern States, in the vital matter of taxation. They are in a minority in Congress. Their representation in Congress is useless to protect them against unjust taxation; and they are taxed by the people of the North
for their benefit, exactly as the people of Great Britain taxed our ancestors in the British Parliament for their benefit. For the last forty years, the taxes laid by the Congress of the United States, have been laid with a view of subserving the interests of the North. The people of the South have been taxed by duties on imports, not for revenue, but for an object inconsistent with revenue – to promote, by prohibitions, Northern interests in the productions of their mines and manufactures.
[p7]
There is another evil, in the condition of the Southern towards the Northern States, which our ancestors refused to bear towards Great Britain. Our ancestors not only taxed themselves, but all the taxes collected from them, were expended amongst them. Had they submitted to the pretensions of the British Government, the taxes collected from them would have been expended in other parts of the British Empire. They were fully aware of the effect of such a policy in impoverishing the people from whom taxes are collected, and in enriching those who receive the benefit of their expenditure. To prevent the evils of such a policy, was one of the motives which drove them on to revolution. Yet this British policy has been fully realized towards the Southern States by the Northern States. The people of the Southern States are not only taxed for the benefit of the Northern States, but after the taxes are collected, three- fourths of them are expended at the North. This cause, with others, connected with the operation of the General Government, has made the cities of the South provincial. Their growth is paralyzed; they are mere suburbs of Northern cities. The agricultural productions of the South are the basis of the foreign commerce of the United States; yet Southern cities do not carry it on. Our foreign trade is almost annihilated. In 1740, there were five ship-yards in South Carolina, to build ships to carry on our direct trade with Europe. Between 1740 and 1779, there were built in these yards, twenty-five square rigged vessels, besides a great number of sloops and schooners, to carry on our coast and West India trade. In the half century immediately preceding the Revolution, from 1725 to 1775, the population of South Carolina increased seven-fold.
[p8]
