Same crap different day! But then if it was all about slavery, then why did the North invade the South when the Southern States invoked their 9th and 10th Amendment rights? You know, the Amendments that gave States the RIGHT of secession. But then I forget myself, you Yankees wrote your Constitution in pencil for easy facilitation of change when its expedient.
Or if Lincoln's war was all about abolition then why did Lincoln himself support the Corwin Amendment just prior to the war?
They invaded the south when the south opened fire on Ft. Sumter.
As the Declaration of Independence said:
"Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes..."
The slave interest said since the wrong candidate won we'll quit. Like so many things about the Confederacy it would be funny if so many good men on both sides had not died because of the slaveowners' selfishness.