You sure spend a lot of energy fantasizing.
In fact, economics did not "drive the North to attack" any more than economics drove President Roosevelt to attack Japan & Germany.
For the US, regardless of economic factors, WWII began at Pearl Harbor, just as Civil War began at Fort Sumter.
It's that simple, and the rest of your fantasies are just stuff & nonsense.
I have no interest in listening to you describe the weather in kookyland.