"Unlike the American revolution, the South did not list any grievances except they did not like they idea that slavery was going to be limited by the incoming Republican Party."
Wrong. Think about that statement. There were a lot of grievances, that one is the one people remember (and rightly so). Read a book.
Seems that you have a problem reading a simple sentence.
Did the South issue a 'Declaration of Independence' listing any grievance's, no, they did not.
The South had no legitimate reason to leave the Union.
The persons whose life, liberty and pursuit of happiness were being suppressed were the millions of blacks the South held as slaves.