Your attempts at trying to make the war about other issues is typical Southern mythology.
The South did not support self-government for the Negro, because they did not believe in the key principle of the Declaration that makes self-government a right, the fact that God has given all men the right to life,liberty and the pursuit of happiness.
MOST of the entire world, Africa included, held slaves. The United States of America - including the Yankee states, held slaves. The first congress' limited naturalization to whites. God had Joseph enslaved, and millions of HIS chosen people - do you condemn HIM?