Like Lost-Causers ever since, Davis was utterly delusional on this.
In fact, there was no war when the Deep South first declared secession, and there was no war when it formed a new Confederacy, and not even after dozens of provocations in Confederate seizures of Union forts, ships, arsenal & mints, etc.
Civil War only came after Jefferson Davis ordered it against Union troops in Union Fort Sumter and then formally declared war against the United States, May 6, 1861.
See, this is always the problem. Modern-day defenders of the rebels want no part of what the participants believed back then.