So in the alternate reality where Jeff Davis and the CSA wanted the Civil War, if Lincoln had stood pat and not called up his 75,000 man invasion force then old warmonger Davis would have been marching north with his army of conquest. Because after all, he’s the one who wanted war, unlike the entirely innocent Lincoln.
Within two weeks of Fort Sumter, Davis did just that, sending military aid to pro-Confederates in Union Missouri.
But your question is identical to asking, "what would have happened if the US had surrendered to the Japanese on December 8, 1941?
Is there any evidence Japanese wanted to invade California, Oregon or even Hawaii?
Wouldn't peace have been the inevitable result?
So really, wasn't Franklin Roosevelt the aggressor who attacked innocent Japanese at Pearl Harbor, and again in Philippines, and along with his ally Churchill attacked them again at Singapore & Hong Kong, plus the Dutch..."
FRiend, the real facts of history on this are undisputed.
Confederates repeatedly demonstrated their eagerness for war by:
All this happened before a single Confederate soldier was killed in battle with any Union force, and before a single Union army invaded any Confederate state.
Those facts demonstrate the Confederacy was eager for war, and made no serious efforts to either keep or restore the peace.