If the southern states had talked about that one-tenth as much as they talked about the threat Lincoln's election posed to slavery, your life would be much easier.
The slavery issue was astroturf for both sides. The Southern firebrands tried to use it as a wedge issue even though it clearly could not be abolished by anything the "free" states could do, and the "free" states tried to use it to keep the power of the congress confined to their side.
But the money streams don't lie. They tell the truth when all the people talking are trying to fool people as to their real motives.
The motives were always money. Money and power.
"...the mask has been thrown off and it is apparent that the people of the principal seceding states are now for commercial independence. They dream that the centres of traffic can be changed from Northern to Southern ports....by a revenue system verging on free trade...."Boston Transcript, March 18, 1861.
Bubba Ho-Tep: "If the southern states had talked about that one-tenth as much as they talked about the threat Lincoln's election posed to slavery, your life would be much easier."
This particular idea from DiogenesLamp is not just non-historical, it's not even part of usual Lost Cause mythology.
Near as I can tell it's just DiogenesLamp's personal contribution to a growing pack of Lost Causer lies.