We are clearly getting way off track, but anyone who has entertained the (false) idea that the South seceded from the union because of some States Rights principle would benefit from reading the original secession proclamation from the state of South Carolina. The document is available online; here is one source:

http://delong.typepad.com/sdj/2010/12/the-south-has-risen.ht...

The first section in the linked page is a preface written on a state website, summarizing that the secession document was totally concerned with slavery. It is then followed by the document in its entirety so that you can see the truth for yourself.