So you're saying the secession/rebellion was over a difference of economic opinion? I guess I now see why almost every justification of secession published was based on the slavery issue. The poor ignorant mud sills who would have to carry the military load of rebellion would have no stake in nor appreciate the economic issues involved. If your tariff explanation is correct, the slavery hysteria expressed by the big shots was just a cynical concession to the bill in blood that the poor cannon fodder would have to pay for the elite's economic well-being. Emphasis bump.
The argument that idealogical opposition to tariffs were a primary reason for secession discounts the fact that the secessionist South quickly raised their own tariffs and included them on goods coming from the United States (ie: the North). It is hard to imagine how the average southerner would have benefited from having to pay this new tax on manufactured goods and staples from a country they were formally part of.