Of course it was the primary cause. Only Southerners or idiots pretend otherwise.Some like to claim it was 'states rights.' Sure - the right to decide whether or not to be a slave state.Or economic issues - the economy of the South depended on slavery.No one need have been killed if "y'all" hadn't seceded and attacked the North. So that, like slavery, is on "y'all."There won't be a second Civil War.And what little you know serves the interests of the slaveholders and traitors, sadly.Funny comment about 'rationalization,' though...lol