There are some powerful anti-war lyrics in this heavy metal anthem from 1990, a time when the U.S. was deeply involved militarily, in Iraq. Unfortunately, Axl Rose might be goofing up on what a civil war is:
“I don’t need your civil war/It feeds the rich while it buries the poor”
A civil war is not so much about any exploitation of a lower socioeconomic class, but refers to two groups in a country fighting each other, such as for independence of part of the country or at least to bring some major public policy changes. Civil wars are about battles within a state (even if like the Spanish Civil War, 1936-1939, resources can come from outside). The American Civil War (1861–1865) seemed to be about regional identifications more than rich versus poor.
Or perhaps Guns ‘N Roses were thinking of civil in terms of conducting ourselves in a more respectful manner. Maybe the whole thing is a metaphor for relationships. Given the possible political subject matter, perhaps the song would have also fit well on the band’s “Chinese Democracy” album (2008).