I agree with you that Civil War will not happen in this country if these grievances are redressed through the electoral process but if that becomes undoable as it did in the 1860s the possibility of armed conflict is a reality no matter how much people loathe it. The Union and Confederacy were loathe to do it themselves. The Tea Party movement and powerful revival of Constitutional conservatism that is sweeping the country is the kind of thing where forces can organize around and become the springboard for war.
The defeatism of the left and the civil war talk on the right will get us all killed..