This argument is tired and have been put to bed many times.
Different view of states rights?  State rights to do what, what state right was it that the confederate states wanted to carry out that the federal government was blocking?  Enslaving, mistreating and abusing african americans.

The southern states did not even believe in states rights because they had brought several cases to the courts trying to overturn Northern state rights on the issue of slavery.  Ie. Dredd scott and fugitive slave laws which are generally accepted as the lynchpin which pushed the civil war into place.  The Southerners were suing in federal courts to get runaway slaves return from northern states and they were kidnapping free born african americans from northern states.  They did not care about state rights.