This would be second actually, but regardless, now you are trying to create an alternative narrative.First of all, there was no CSA. It was a very loose association of "free states." If there was a CSA, they might have won, but Davis couldn't get the states to raise troops and money for the other states. What you fail to address about Ft. Sumter is what right South Carolina had to it after they had already ceded it to the United States.
You missed the entire argument completely. The South shouldn't have to of had to come back peacefully, because the South shouldn't have had to come back at all. Self determination was the argument, and Lincoln denying those States their right to it is why he is a tyrant.It could not have been possible. Would the South come back peacefully if asked? No. But you ask the opposite question and then declare Lincoln a "tyrant" because he had the guts to fight a war that needed to be fought.