Interesting, in re to the SC secession document that you provided a link to, you have to go through 14 paragraphs of reasons as to why they felt compelled to secede before there is ANYTHING mentioned connected to slavery. The concept of state sovereignty, however, appears as early as paragraph six and is sprinkled throughout the document.
So, thanks for confirming the southern perspective. It is, as I have maintained for some time, that you can find writings that support “slavery was the cause” and can find writings that slavery was only one of the reasons. And yet, people in your camp focus on, and point to, slavery as THE cause despite the overwhelming documentation that demonstrates it was not. (The example that YOU YOURSELF provided being just one.) You can point to the “slavery” writings forever, but until you acknowledge that other writings exist you are not being intellectually honest. Of course, once you acknowledge that they do exist, you can never again make the “it was only about slavery” argument.
Which explains a lot.
You misread it. It's only about slavery.
Here is the key statement:
"On the 4th day of March next, this party [abolitionist Republicans] will take possession of the Government.That is their key reason, and it is false.
It has announced that the South shall be excluded from the common territory, that the judicial tribunals shall be made sectional, and that a war must be waged against slavery until it shall cease throughout the United States."