Slavery was legal when the war started. The south said goodbye, leave us alone. It was the actions of the north that led directly to war and the loss of over 600,000 young men in the prime of their lives. For what? The south had the moral right and duty to protect itself. All the north had to do was wave goodbye. If they wanted to end slavery, this was the best option, simply let those states who want to keep slavery leave the union and what you would have left is your perfect, slave-free society. That's not what happened is it? It wasn't about the high and mighty slavery crap. It was about the high and mighty dollar and how much they could chisel out of the south's economy instead of their own. Follow the money.
Lol...slavery WAS their interest. Was that the only reason of course not. But as I very clearly pointed out it was the main reason. Unless you want to convince me what they wrote was a lie....