I wonder how yankees of today feel about “winning”. “It’s a fine mess you’ve gotten us into, Ollie.” :-)
Interesting question.
It is, however, faced with the problem of all counter-factual speculations.
Is there any particular reason to believe things would not have turned out even worse had the CSA won its independence?
We know what happened when the Union won, so we assume none of the bad things would have happened if the other option had occurred.