I could have married Morgan Fairchild twenty-five years when I was hanging out with her sister, but I didn't.
A lot of those near misses "could have" but they didn't. Thus you don't have a point.
The same state almost plunged the country into civil war over another issue less than 30 years earlier so it is incorrect to say slavery is the only issue that could have triggered it.
I haven't won a million dollars, but that doesn't mean I won't. If the slavery issue hadn't been the spark that ignited war, it doesn't mean something else wouldn't have.
How hard is it to understand that the South fought over slavery, but the North did not?
The North did not fight this war over slavery. They didn't care about black rights. They fought to preserve their economic advantage.
Are you saying the war, for the south, was about the principle of slavery or the economic and political ramifications of ending it? If the latter, then I'm with you. If the former, I disagree.
You can't separate the two to make you feel better morally. They are totally interrelated.
The leaders of the Confederacy considered blacks subhuman and it to be the natural way of the world to treat them like chattel. They were willing to die to keep this in place.
The workforce IS slavery. There is no way to separate the two pieces.