No, it was fought because of sectionilism. Plus, the south wasn't "crushed," the battle of bull run, and pretty much every other battle had major losses on both sides. To prove my point, there were many other problems other than slavery. The south was offended by the industrial revolution, as they felt it was the north's way to destroy their way of life and their economy. The south also felt that they were losing representation in Congress. There was also many other problems, such as the northern tarrifs, taxes, etc. On top of this all, Lincoln was not actually against slavery, but he was the person who pushed the southern States to leave the union, because they thought that the north was going to attack them and their way of life. They did not like how the north was abandoning the agricultural society that Thomas Jefferson had fought to establish. Slavery was not the only issue, but half way through the war, the north had used slavery as a scapegoat to help motivate volunteers to join the army. In fact, tons of Confederate soldiers have stated that they did not fight for slavery, they were fighting for their freedom.