As the Northern motivations were the real cause of the strife, and the real cause of the war, they are the motivations which need to be justified.
They invaded other people running up a death count of 750,000 people to subjugate them to the will of Washington DC.
Are you blind to the deep state running a fake election to get Trump out? Are you blind to the lies being spread by the deep state right now? Are you ignorant of January 6 "trespassers" being held in solitary confinement for six months for relatively trivial charges, while the entire media system is trying to call them "insurrectionist?"
The primary force of evil we face in this country today, right now, is the corrupt "elite" Washington DC influence cartel and it's money laundering allies and associates.
The current political fight is about POWER. It's not about "voter suppression" or "mask mandates" or "illegal immigrants".
Are you blind?
And I'm not going to let you wiggle out. This is the first time you've defected to “Northern motivations were the real cause of the strife” and you're can't change horses in midstream. The Confederacy tried to leave the Union. The reason was to preserve slavery. The motivations of the abolitionists don't matter.