SO, if OBAMA had won the election today WITHOUT being on the ballots of half the states would those states stood for it?
He WAS on the ballots so the states have to live with it.
Lincoln still was NOT on the ballots of the southern states so the people felt they had no choice in the matter and a man not elected or rejected by them was forced upon them.
Besides, the problems began back before 1832 and 1833, it was not slavery at that time.
https://en.wikipedia.org/wiki/Nullification_Crisis
If your position is that not having someone on the ballot makes the election illegitimate in the state then how do you explain South Carolina? People in South Carolina never voted for a single president until after Reconstruction. Up until then the state legislature decided who got the state's electoral vote. By your definition then none of the presidents were legitimate.
Lincoln's election was legitimate. It complied with the Constitution in every respect. He would have won if he'd been on the ballot in every state. For the Southern states to use that as an excuse for rebellion shows how little respect they had for the Constitution.
Besides, the problems began back before 1832 and 1833, it was not slavery at that time.
An administration opposed to slavery had not just been elected.
You have it backwards. Lincoln wasn’t on the ballot in those states because those states deliberately omitted him from the ballots. Lincoln had nothing to do with it.
If the people in those states “felt they had no choice in the matter” they should have taken it up with their state governments.