I think you accurately understand the percentages of opinions of the rank and file. I am still pointing out I was always referring to the movers and shakers, not the order followers. The top of the chain of command didn't care about abolishing slavery when they initiated their military engagements.
As you have pointed out so many time, the reason why, doesn’t matter. Those people were free to support abolition for whatever reason they chose.
Self Interest is self interest masquerading as altruism.
If they were against slavery for their own benefit, then it's really self interest, not opposition to slavery. These sort would defend it if they were making a buck off of it, sames as the Southerners were doing.
Caring about slavery is not caring about your own self interest.
Self Interest is self interest masquerading as altruism.
We are seceding from the Union for States rights and our independence.
The self interest, protection of the economic system that evolved in the deep South. nothing more nothing less.