Yes, I guess you can find the answers and yes, I guess the causes of the war were taught differently that in your case.
I don’t know about any of the other Confederate states, but the political and economic leaders in South Carolina gave the following causes for secession in their ordnance of seccession of 1860.
This is taken from the book Main Problems in American History, Quint, Cantor and Albertson (Dorsey Press 1972, Homewood, IL) Those author’s source was: Frank Moore (ed), The Rebellion Record . . 11 vols. and Supplement (New York C. P. Putnam, 1861—63; D. Van Nostrand, 1864—68), Vol. 1, p.2.
"South CAROLINA DECLARATION OF
CAUSES OF SECESSION
DECEMBER 24, 1860
The people of the State of South Caro_lina in Convention assembled, On the 2nd clay of April, A.D. 1852, declare that the frequent violations of the Constitution of the United States by the Federal Govern_ment, and its encroachments upon the reserved rights of the States, fully justified this State in their withdrawal from the Federal Union; but in deference to the opinions and wishes of the other Slave-holding States, she forbore at that time to exercise this right. Since that time these encroachments have continued to in_crease, and further forbearance ceases to be a virtue."
“And now the State of South Carolina having resumed her separate and equal place among nations, deems it due to her_self, to the remaining United States of America, and to the nations of the world, that she should declare the immediate causes which have led to this act.”
“We affirm that these ends for which this Government was instituted have been de_feated and the Government itself has been destructive of them the action of the nonslaveholding States. Those States have assumed the right of deciding upon the propriety of our domestic institutions; and have denied the rights of property es_tablished in fifteen of the States and recog_nized by the Constitition; they have denounced as sinful the institution of Slavery; they have permitted the open establish_ment among them of societies, whose avowed object is to disturb the peace of and eloin the property of the citizens of other States. They have encouraged and assisted thousands of our slaves to leave their homes; and those who remain, have been incited by emissaries, books, and pic_tures, to servile insurrection.”
“For twenty five years this agitation has been steadily increasing, until it has now secured to its aid the power of the common Government. Observing the forms of the Constitution, a sectional party has found within that article establishing the Executive Department, the means of subverting the Constitution itself. A geo_graphical line has been drawn across the Union, and all the States north of that line have united in the election of a man to high high office of President of the United States whose opinions and purposes are hostile to Slavery. He is to be intrusted with the administration of the common Government, because he has declared that ‘Government cannot endure permanently half slave, half free,’ and that the public mind must rest in the belief that Slavery is in the course of ultimate extinction.”
“This sectional combination for the sub_version of the Constitution has been aided, in some of the States, by elevating to citizenship persons who, by the su_preme law of the land, are incapable of becoming citizens; and their votes have been used to inaugurate a new policy, hos_tile to the South, andi destructive of its peace and safety.”
“On the 4th of March next this party will take possession of tile Government. It has announced that the South shall be ex_cluded from the common territory, that the judicial tribunal shall be made sec_tional, and that a war must be waged against Slavery until it shall cease through throughout the United States.”
“The guarantees of tile Constitution will then no longer exist; the equal rights of the States will be lost. The Siaveholding States will no longer have the power of self government, or self-protection, and the Federal Government will have be_come their enemy. Sectional interest and animosity will deepen the irritation; and all hope of remedy is rendered vain, by the fact that the public opinion at the North has in_vested a great political error with the sanctions of a more erroneous religious belief.”
“We, therefore, the people of South Carolina, by our delegates in Convention assembled, appealing to tile Supreme Judge of the world for the rectitude of our intentions, have solemnly declared that the Union heretofore existing between this State and the other States of North America is dissolved, and that the State of South Carolina has resumed her Position among the nations of the world, as a sepa_rate and iuidependent state, with full
power to levy war, conclude peace, con_tract alliances, establish commerce, and to do all otiler acts and things which independent States may of right do.”
Now, the document speaks of preserving the “property” of the south, but the property to be preserved was slaves. It speaks of encroaching on the “rights” of the south, but that right was the holding of slaves. I don’t see how it is possible to read this statement of causes and still claim that the civil war wasn’t about slavery - at least to the planter establishment of South Carolina.