Right I meant to correct that 1 cent not 1%.
Morrill Tariff was a large contributor to Southern issues with FedGov.
Only $3 million was collected(I guess in border states) prior to the end of the war from cotton taxes. Not that significant.
The passage of the Morrill Tariff was a consequence of secession, not a cause.
It passed the Senate by 25 to 14, but only after the seven initial CSA states had seceded. Until then, Democrats had controlled the Senate, and the measure didn’t even come to a floor vote. Had these states remained in the Union, presumably any vote would have been 28 to 25 against.
It is also interesting that the measure was signed by Buchanan two days before leaving office. He was, of course, a Democrat.