My mistake, my mind apparently wandered off for a moment. The source below better explains Southern resentment.
"As early as the Revolutionary War, the South primarily produced cotton, rice, sugar, indigo and tobacco. The North purchased these raw materials and turned them into manufactured goods. By 1828, foreign manufactured goods faced high import taxes. Foreign raw materials, however, were free of tariffs.
Thus the domestic manufacturing industries of the North benefited twice, once as the producers enjoying the protection of high manufacturing tariffs and once as consumers with a free raw materials market. The raw materials industries of the South were left to struggle against foreign competition.
Because manufactured goods were not produced in the South, they had to either be imported or shipped down from the North. Either way, a large expense, be it shipping fees or the federal tariff, was added to the price of manufactured goods only for Southerners. Because importation was often cheaper than shipping from the North, the South paid most of the federal tariffs.
Much of the tariff revenue collected from Southern consumers was used to build railroads and canals in the North. Between 1830 and 1850, 30,000 miles of track was laid. At its best, these tracks benefited the North. Much of it had no economic effect at all. Many of the schemes to lay track were simply a way to get government subsidies. Fraud and corruption were rampant.
With most of the tariff revenue collected in the South and then spent in the North, the South rightly felt exploited. At the time, 90% of the federal government’s annual revenue came from these taxes on imports.”
https://www.marottaonmoney.com/protective-tariffs-the-primary-cause-of-the-civil-war/