Ohh no there were taxes tarrifs and trade issues. the "Civil war" was not fought just for slavery.
Taxes and trade were huge issues. And don't forget slavery at the time was more an economic issue than one of pure racism, as we view it today. The South literally could not sustain its agricultural economy without the labor provided by slaves, and they lacked the resources and infrastructure to industrialize. I'm not defending it by any means, the labor conditions in the industrial North were nothing to brag about either as far as human rights are concerned, but if you look at the issues objectively there was much more to the conflict than racism. At its heart it was far more about economics than hating black people.
Today's States Rights movement is still largely about economics and taxation, with some social issues thrown in for good measure. But I have yet to hear a legitimate States Rights advocate say they want a return to slavery or Jim Crow. The ones who use States Rights as a foil for a racist agenda mouth some of the platitudes, but if you really listen to them they're not espousing a true States Rights position.