“I guess the South had every right to secede. They just didn’t have the right to enslave humans”
“even if the North had allowed a peaceful secession, the South would have been an undeniable threat “
Total BS. That liberal public school propaganda really got to you.
The North had slavery, too. Hell, it was still in the US Constitution at the time of Civil War. Not even Lincoln wanted to end slavery and he had even worked to ensure freed slaves were never allowed in his home state of Illinois! The Civil War to Lincoln was about his railroad partners needing to keep the union together. Lincoln even wrote that States had the right to leave the union.
Just how was the South an “undeniable threat”? What threat? If it is so “undeniable” then point it out.
So if we accept the premises that the civil war was illegal and contrived, though its end was ethical where does that leave us? It's a can of worms to be sure.
Lincoln inserted four arguments against the right of secession in his first inaugural address.