You have to include those slaves forced to fight ,or, forced to support, the war effort. Sure.
And those who were freed and stayed. And those who worked to free slaves within their parishes. Those who lost family members who tried to change an institution. And those who really didn't care, but grew up with the notion (prevelant as it were) that the state was the ultimate authority, not a greater federation.
I love it when people like you can't get over winning the war. It's good for a laugh.