Sorry - You missed the point of the discussion. The war was instigated by the North because the North could not exist financially without the Southern tariff revenue. So they had to fight. Even Lincoln could live with Slavery (as stated in the article) - he was fighting to hold the union together.
Correct. And by “hold the union together” what he really meant was keep the cash cows in and keep all that sweet sweet cash flowing Northward to my financial backers.
Treason had to be stoped.
The North could exist without the Southern produced tariff revenue, but it would mean a lot of money leaving the pockets of wealthy powerful men in the North who liked having that money coming into their pockets.
They weren't going to allow the South to walk away.
The North would have just been cut off from it's addiction to Southern produced money, and like a drug addict, they reacted violently, blamed others, and took out their rage on the victim.