I bet you love "Gone With the Wind" don't you?It might be a better term if this weren't a point of contention for me. Lincoln to me is the despotic example remade in a saintly guise that makes all sorts of government tyranny justifiable in many minds.
Obviously Slavery was a great evil. Lincoln's war just had very little to do with abolishing it. That's why Slavery wasn't abolished in the Union until near the end of the war. Lincoln's generals certainly were often adamant in stating they weren't fighting to end Slavery. Many were patently, rabidly, racist. Lincoln gives us the principle that almost any government act, including massive warfare may be justified if attached public sentiment for procuring freedom for a selected group. ("Yes" to free the French for instance, but not to free the European Jews, or millions of burka clad women. "Yes" to free the Iraqis, but not to free the Nigerians.)
I'd go on, and I have elsewhere, but it's not really germane to the thread topic.
I use the term "War of Northern Aggression" as a personal protest against the fake history that victims of the public school system carry about in their heads. "War Between the States," might be correct, but it has less of an indictment about it. Besides, I don't expect to convince most people one way or another.