Not even the fire eaters of 1857 argued that northern states could not outlaw slavery.
It certainly pissed off a lot of people, but making people angry does not make it an incorrect decision. It is legally correct according to the laws in existence at that time. I don't have to like a decision to recognize it correctly follows the principles of the law.
Not even the fire eaters of 1857 argued that northern states could not outlaw slavery.
Why should they attempt to do that? In some states, banning slavery was already a fait accompli. It had been the defacto law in some states for half a century or more, and legal arguments would have been pointless.
That doesn't mean they would not have been correct.