It sounds rather strange actually: "And I won't let you call it civil war" As I've said, you may call it whatever you want, it is civil war. I bet in every civil conflict people tend to think that the other side of conflict is some kind of rogues, bandits, terrorists, mercenaries, foreign agents(hello 1917). It still doesnt change anything.
I'll use public definitions: "Civil war is a violent conflict within a country fought by organized groups that aim to take power at the center or in a region, or to change government policies". Ring anything?