Horse hockey. Slavery was the only reason the south seceded. it is in the declarations of secession of the states.
Lincoln's election scared them into thinking the time was at hand and the advancing free-state additions would eventually causes them to lose political power in this area.
They discuss various reasons, the failure of the northern states to abide by their LEGAL agreement as well as economic issues.
So it's your assertion that the Confederate states departed a union which promised PERMANENT slavery, in order to continue it?
It's your assertion that slavery was so despicable, that the Union fought a war to continue it?
I agree that slavery was at the root of secession and the Civil War, but the immediate cause for the second wave (VA,NC,TN,AR) was President Lincoln's call for volunteers. Lincoln unified the North, but he helped to bring more unity to the South also. If Lincoln could have held the border states, the rebellion might have eventually ended when a bloodless whimper when the seven states realized their interests were best served in the federal union under the US Constitution.
But Lincoln offerred a Constitutional amendment to protect slavery, yet the Confederacy was formed anyway. hmmm
Our position is thoroughly identified with the institution of slavery-- the greatest material interest of the world. Its labor supplies the product which constitutes by far the largest and most important portions of commerce of the earth. These products are peculiar to the climate verging on the tropical regions, and by an imperious law of nature, none but the black race can bear exposure to the tropical sun. These products have become necessities of the world, and a blow at slavery is a blow at commerce and civilization. That blow has been long aimed at the institution, and was at the point of reaching its consummation. There was no choice left us but submission to the mandates of abolition, or a dissolution of the Union, whose principles had been subverted to work out our ruin.