“No one invaded to get rid of slavery....”
You’re right. They invaded because a petulant little man threw a hissy fit because he saw his revenues disappearing before his very eyes. It was only later, to score political points, and to create an excuse and justification for starting a bloody war, so he’d look good to posterity and historians, that that same petulant little man decided that the invasion was, after all, to free the slaves.
Lincoln was a fraud.
So, preserving the union had nothing to do with it, huh?
Your judgment on display.