The behavior of "the South" is fully explained by the following: they were Democrats and as such they favored powerful Federal Government to advance their own interests.
But just like today's Dems, as soon as they saw someone else take over "their" government, they went insane with "resistance".
The Republicans were the liberals of their day and the Democrats were the conservatives, that is fact.
Yeah, like cutting the 75% of the taxes their 25% of the citizens were paying, while the Northern 75% of the citizens were only paying the remaining 25%.
Also cutting out the onerous legal requirements for shipping that guaranteed that the traffic would be handled by North Eastern shipping companies.