It is hard to believe that so many Americans doubt that slavery was the central cause of the U.S.’ deadliest conflict, considering that the Confederacy and its members said as much explicitly and clearly.
First up is the state that started the Civil War, South Carolina:
…A geographical line has been drawn across the Union, and all the States north of that line have united in the election of a man to the high office of President of the United States, whose opinions and purposes are hostile to slavery. He is to be entrusted with the administration of the common Government, because he has declared that 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 submersion of the Constitution, has been aided in some of the States by elevating to citizenship, persons who, by the supreme law of the land, are incapable of becoming citizens; and their votes have been used to inaugurate a new policy, hostile to the South, and destructive of its beliefs and safety.
Other states followed suit, often in much clearer terms. Consider Mississippi:
Our position is thoroughly identified with the institution of slavery—the greatest material interest of the world. Its labor supplies the product which constitutes by far the largest and most important portions of commerce of the earth. These products are peculiar to the climate verging on the tropical regions, and by an imperious law of nature, none but the black race can bear exposure to the tropical sun. These products have become necessities of the world, and a blow at slavery is a blow at commerce and civilization. That blow has been long aimed at the institution, and was at the point of reaching its consummation. There was no choice left us but submission to the mandates of abolition, or a dissolution of the Union, whose principles had been subverted to work out our ruin…
As a separate republic, Louisiana remembers too well the whisperings of European diplomacy for the abolition of slavery in the times of annexation not to be apprehensive of bolder demonstrations from the same quarter and the North in this country. The people of the slave holding States are bound together by the same necessity and determination to preserve African slavery.
Upon the principles then announced by Mr. Lincoln and his leading friends, we are bound to expect his administration to be conducted. Hence it is, that in high places, among the Republican party, the election of Mr. Lincoln is hailed, not simply as it change of Administration, but as the inauguration of new principles, and a new theory of Government, and even as the downfall of slavery. Therefore it is that the election of Mr. Lincoln cannot be regarded otherwise than a solemn declaration, on the part of a great majority of the Northern people, of hostility to the South, her property and her institutions—nothing less than an open declaration of war—for the triumph of this new theory of Government destroys the property of the South, lays waste her fields, and inaugurates all the horrors of a San Domingo servile insurrection, consigning her citizens to assassinations, and. her wives and daughters to pollution and violation, to gratify the lust of half-civilized Africans.
…in this free government all white men are and of right ought to be entitled to equal civil and political rights; that the servitude of the African race, as existing in these States, is mutually beneficial to both bond and free, and is abundantly authorized and justified by the experience of mankind, and the revealed will of the Almighty Creator, as recognized by all Christian nations; while the destruction of the existing relations between the two races, as advocated by our sectional enemies, would bring inevitable calamities upon both and desolation upon the fifteen slave-holding states….
As early as 1858, then-Mississippi Senator — and future President of the Confederacy — Jefferson Davis threatened secession if the institution of slavery were to be threatened:
I say to you here as I have said to the Democracy of New York, if it should ever come to pass that the Constitution shall be perverted to the destruction of our rights so that we shall have the mere right as a feeble minority unprotected by the barrier of the Constitution to give an ineffectual negative vote in the Halls of Congress, we shall then bear to the federal government the relation our colonial fathers did to the British crown, and if we are worthy of our lineage we will in that event redeem our rights even if it be through the process of revolution.
If the policy of the Republicans is carried out, according to the programme indicated by the leaders of the party, and the South submits, degradation and ruin must overwhelm alike all classes of citizens in the Southern States. The slaveholder and non-slaveholder must ultimately share the same fate—all be degraded to a position of equality with free negroes, stand side by side with them at the polls, and fraternize in all the social relations of life; or else there will be an eternal war of races, desolating the land with blood, and utterly wasting and destroying all the resources of the country.
Many Southern elites even fantasized about extending a slave-based empire across the Americas, especially Cuba, Mexico, and Central America. Numerous Southern publications echoed these sentiments as well, both leading up to and throughout the course of the conflict. Slavery was not a fringe position in the South — it was part and parcel of its cultural identity, social order, and economic power. And many Southerners felt aggressive enough about it to want to expand the institution well beyond U.S. borders, let alone allow it to be contained or threatened.
In short, the U.S. Civil War was an inevitable, even logical, outcome of having one-half of the country steadfast in its commitment to a barbaric and increasingly polarizing ideology. Slavery was incompatible with America’s ostensible values of liberty and the consent of the governed, and it formed the crux of the country’s debate about what sort of place it was going to be. One way or the other, it was going to be challenged, and given the aforementioned attitudes towards the practice, it was always going to be violent.
Source: The Atlantic