That is correct. The ultimate goal of the Confederacy was the expansion of slavery empire and the overthrown the United States government in order to carry out their diabolical plans.
After all Confederates succeeded in murdering a U.S. President and would have murdered the entire Lincoln administration if the treasonous conspiracy had been totally implemented.
Such a cowardly assassination of a United States President, yet fanatical neo-confederate voice approval. How demented.