Only problem with that is that there was 0 chance of slavery ending by force in any of the states that formed the Confederacy if not for the Civil War. Lincoln himself was on record as saying that it would not be affected in any current slave holding state. I am not one that claims that the Civil War was not about slavery because in the end slavery was the issue that exposed the fractures that led to it. The secessionists were really driven by a vision of dwindling power in the Federal government and Lincoln was certainly opposed to the further expansion of slavery and that was the driving force behind the secessionist movement. And even that is really over simplification of what was a very complex set of issues that led to states that didn't even necessarily have the same interests other than permitting slavery to band together in a confederation. In the end the weakness of the central government of that confederation contributed to it's ultimate defeat which is what is so humorous about the OP's contention that the Confederacy was no different than the Federal system of the US.
They were pushed by a vision of dwindling power in the federal government that would let the other side use it to end slavery. There are of course many factors in play for a decision as large as the one they took, but slavery was far, far, far in excess of any other one.
