No, but it all relates back to the enslavement of human beings. That’s simple enough.
Yes, I know. They were copperhead democrats, who were lynching black men. They didn’t want the slave trade to end due to their being afraid of competition for jobs - and likely they feared losing jobs due to a swift end to the slave economy and the impact that would have, given how intimate the northern and southern economies were. And I’m fully aware that the north was just as racist as the south. No one is saying that the entire north to a man was full of enlightened people, but that they were indeed part of the discussion over slavery for various reasons.
Still about slavery. The wealth of the entire country, the industrial economy, debates over labor patterns, all about slavery. Ignoring that means ignoring the reality of antebellum America.