Yes, that's a true statement.
South Carolina was the first state to declare secession because of him because they believed, just like the nullification crisis, that Lincoln's policies were favoring north and were Against the south. Unlike the Jackson era where the thing in question was tariffs, here it was resolving about slavery.<span />
In many ways. They were highly oppressive towards the people and nobody was allowed to say anything against the state. They also placed their own well-being above the well-being of the country, which meant that they didn't just take what they needed, but rather they enjoyed a luxurious life while the common working class people suffered in poverty.