i disagree. the war was not only about states rights, but it was most certainly a large part of why the southern states seceded. also, as an historian, revisionist history is extremely important. just claiming something is revisionist does not mean that it is wrong. today, one is shouted down when one points out that states rights was an important instigating factor for the war because it is uncomfortable for some people to hear and goes against an accepted political and cultural touchstone: the south=evil. you are repeating the narrative that you were taught by history books that were written by the winners. those history books tell one side of the story. i am not saying that that side is false, but it certainly does not paint the whole picture.
there is a lot of controversy around confederate vice president alexander hamilton stephens, and people point to one sentence in his cornerstone speech in an effort to show that the civil war was only about slavery. however, the civil war is an event in which we have plenty of documentation, not just the sanctioned documents, of the losing side. alexander hamilton stephens left a 2 volume tome A Constitutional View of the Late War Between the States that has been largely ignored by historians and law scholars alike. instead of challenging the accepted narrative based on one sentence from a political speech, it is easier to ignore something that causes us anxiety by challenging what we have been programmed to believe.