For the sake of discussion let us say this is "true." Even if it is true, it is irrelevant to the economic damage this would cause to powerful men in the North, and the New York economy specifically.
The point here isn't whether the South was making a mistake in becoming independent, the point is that the South becoming independent was a strong economic incentive to the powerful people in the North to stop them.
The power men of the North regarded the South's efforts to become independent as a serious economic threat to their own industries.
Thus, war. Not to stop human suffering, but to prevent an economic threat to wealthy and powerful people who's descendents are still running the United States of America today.
We know of them as the "Establishment" and "Crony Capitalist" "influence buyers." They own the media. They own Washington DC, and have since the 1850s.
So your only concern is the economic damage that it would cause in the North.
I have to admit you have the patience of a saint though I don’t know why you bother with the same utterly obsessed 2-3 PC Revisionists who spring up in EVERY thread in which the subject is mentioned.
The funnies of all is rocksinhishead who doesn’t even bother trying to make arguments instead just spewing bile nonstop just like the standard Leftists you see on DU or Huffpo or some other such cyber cesspool.