Of course you couldnt get more than half-way through because the truth conflicts with your dearly held delusion of the war. Its too bad because some times you show flashes of reasonable thought.
Again, the North had taken slavery off the table by passing the Corwin amendment through congress. What I mean here is that so far as the Northern states were concerned, slavery could persist indefinitely, therefore they were not fighting against the South because the South had slavery.
The North did not launch a war over slavery. They just didn't.
Ergo, "slavery" was not the cause over which the war was began.