[Genoa]

So then it was really about individual property rights rather than state's rights. And while the Constitution does have some protections against government seizing your property, it does not guarantee you the right to take your property wherever you choose.

I would say yes, state's rights per se had relatively little to do with it, since only a small radical element in the North wanted to interfere with the domestic institutions of the southern states. It was mostly about competing political and economic interests that battled over differing visions about policy for westward expansion.

[Non-Sequitur]

It was mostly about competing political and economic interests that battled over differing visions about policy for westward expansion.

Let's be honest, it was about expansion of slavery into the territories. Lincoln opposed it, the South wanted it. Lincoln was elected, the South seceded. So from their point of view it was about slavery.