The war was about upholding the Constitution and States Rights.We would be a free nation of states today if the South had won. Right now we are states held captive by the federal government. Being a member state of the United States should not mean being part of a death pact! That's where we are at this point.
With the exception of freeing the slaves, and opposing the Southern rebellion, I can't think of an action Lincoln took that wasn't also taken by Jefferson Davis. Conscription? Both did it. Suspend habeas corpus? Both did it. Income tax? Both did it. Protectionist tariffs? Both again. Newspaper censorship? Ditto. Consolidate power in the central government? Both again. So considering that Davis was just as bid a despot in his way as you claim Lincoln was in his how can you make the blanket claim that the South would have developed into some sort of small government, state's rights paradise? The odds seem to be against that happening, given the start.