That would have made it more like the first, than the last link. And it's a backwards way of looking at history. Rather than the tariff making the war, it looks like the war made the tariff. Certainly the fifty years of Republican dominance and high tariffs were the product of the war, and of the conflict over slavery that preceded it. It was secession and war that turned a minor revision of the tariff into something much more drastic and long-lived.
Lincoln's threat to use force had a more subtle objective: by threatening to use force Lincoln repudiated 100 years of Constitutional scholarship about a sovereign State's right of secession. Lincoln's message to South Carolina and other secession-leaning states was clear: we do not recognize your right to secede and we will restrain you by force from doing so. All of the Founding Fathers would have found Lincoln's novel legal doctrine of the Union "creating" the sovereign states to be outrageous and tyrannical
Most Americans probably had not considered the question of secession prior to 1860 and among those who did there was much disagreement. If you listen to latter day Confederates they will tell you that unilateral secession was universally assumed to be valid, but that's far from the truth. Many disputed such an idea. And even those who did accept it didn't presume that whatever the seceders did would be right. The idea of the union creating states was hardly "outrageous and tyrannical." The federal government played an important role in acquiring and settling territory and would-be states had to petition the federal government for admission.
Lincoln was not the great emancipator, he was the great centralizer.
I would say that he was the great emancipator and the great preserver. Of course it was the 13th Amendment, passed after Lincoln's death and ratified in part as a tribute to him that finally freed the slaves. But if one must attach a name to emancipation, who would be more appropriate? True political centralization would come later with the progressives and the New Deal. Railroads and corporations also promoted a national market. A Confederate victory would have been a setback for centralization in the form that we've experienced it (though Davis had shown centralizing tendencies of his own), but Lincoln is more in continuity with Washington, Madison, Jackson and others, than a new departure. He shared with the Founders a knowledge of the dangers disunion could bring. Nationalism didn't begin with Lincoln, nor did the welfare state.