If you're looking for insanity, you'll find plenty in DiogenesLamp posts, all of which were addressed and debunked on that thread, among others.
Sanity begins when you first grasp that the decision for war was made by Jefferson Davis at Fort Sumter, exactly equivalent to the Japanese decision for war at Pearl Harbor.
The Confederacy then multiplied their commitment to war by issuing a formal declaration of war on May 6, 1861.
Finally they refused to stop fighting on any conditions more favorable than "Unconditional Surrender".
In Lincoln's First Inaugural on March 4, 1861, he promised Secessionists they could not have war unless they themselves started it.
So they immediately set about preparing to start war at Fort Sumter.
That's why responsibility for the Civil War dead & wounded belongs to Confederate leaders who started fighting and refused to stop short of unconditional surrender.
Not "debunked", more like drowned in the stream of irrelevant crap you deliberately put forth in order to abfuscate the salient point; That Money, specifically the loss of huge sums of it to the power structure of the New York/Washington Axis, was the reason why the Union invaded the South to stop their independence from that power structure.
Same trouble we face today. New York/Washington controls the nation, and the rest of us pay tribute.
You are wrong about Fort Sumter being a sneak attack by Confederates. Start with that.