That there were other complaints that the South had does not change the fact that it was slavery that was driving the move for secession.
This was the motivation for the deep south states.
FEW people in the southland actually owned slaves (only about 5-6% DID own any!) & the NON-slaveowners were NOT inclined (regardless of what you were taught in school to go to war over some other RICH guys slaves.
for the VAST MAJORITY of southerners the war was ONLY about FREEDOM from the north & having the boot of the damnyankees OFF our collective necks.
free dixie,sw