Was the Civil War necessary?

Was the civil war even necessary? Honestly, it wasn’t. Personally, I think there are other ways to resolve a dispute. I feel that when it comes to resolving disputes one must first identify all of the options, and then according to the effects of each option, then decide on the best solution. However, there are times when you can’t control that, because the other party is attacking you. In that case I believe it’s the only appropriate time to go to war because one must defend him and what ever he/she is representing. But if the Civil War didn’t occur then our lives today would be very different. That would mean that emancipation would have already happened and that congress came to an agreement. It would also mean that our country would be more advanced, because if congress didn’t feel that war was the answer then that means that our country was stable and we wouldn’t have to rush towards war. However, since that wasn’t the case, we went to war and the Civil War is known as the bloodiest war. It was really unnecessary especially for something that could be resolved with civil communication, and  a compensation over coffee.