Did you make those history channel documentaries? You're forgetting your blind spot, again!! Lincoln was concerned about tariffs, not slavery. That is why he 'winked' at the proposed 13th Amendment - protecting slavery - forever!!
As Lincoln said, "What, then, would become of my tariff?"
Before you say “hyperbole” again or ask for a quote, just look up the Corwin Amendment. It wanted to make in unconstitutional to abolish or even restrict slavery anywhere in the states. 3 states had ratified by the time of Lincoln’s inauguration (including his home Illinois), at which point he said:
“I understand a proposed amendment to the Constitution . . . has passed Congress, to the effect that the Federal Government shall never interfere with the domestic institutions of the States, including that of persons held to service. I have no objection to its being made express and irrevocable.”
What a saint.