You mean the people who won decide they were right? Astonishing.
The South had the many presidents and Democrat Congresses to change the laws, voted in many tariffs, even a late 25% one, loved them their slaves, literally and officially told the world that the sole reason the South “left” the United States was due to slaves, and late-comers such as yourself believe they left due to the taxes the South levied on the nation, that slavery was not an issue, that it was fundamentally better to “Buy Foreign” than “Buy US” or make it themselves, and that walking away from a Southern Democrat president, just prior to Lincoln getting into the presidency was the fault of Lincoln and the North and that the War was unjustified.
The level of obtuseness in your mind and the mind of a few others here is astounding, when all the facts say something counter to your whim.