“So how does that become justification for secession?”
From my point of view it doesn’t.
But I do understand human nature.
Dred Scott enraged the North and Harper’s Ferry enraged the South. They were the final straws so to speak.
I was just pointing out the Truth.
I like that, especially the capital "T" part. ;-)
Of course, they were far from either first or "final straws".
So Dred Scott (1857) helped destroy the Northern pro-slavery Whig party, and John Brown (1859) convinced many Southerners that abolitionists were both serious and dangerous.
But decisions of secede and start war on the United States were taken by Deep South leaders, for reasons which today defy rational explanation.
That's why we see our pro-Confederate FRiends posting so much nonsense here.
The real Truth for them, and for us, makes no sense.