I agree with you, but that is the name it is most commonly known by, so I use it just to avoid having an argument over the term applied.
It is more accurately described as a War of oppression against the Independence of the Southern states.
Then as now, the Liberals try to manipulate the words to support their political agenda.
I remember the first time I heard an argument between the concepts of the Civil War and the War Between the States. It was one of those times that I went into learning mode and didn’t say a word; I just listened to the heated argument before me.
You are correct - the words are manipulated to suit a political agenda.