What point are you trying to make? It only makes sense to get pissed when the federal government is threatening to set your economy back a hundred years... I'll let you in on a little secret, southerners back then would've used an alternative to slaves had a better one been provided. They didn't exist solely to oppress black people even at the cost of efficiency.
The fact is, the north wasn't "above" slavery, they just found cheaper alternatives and so slavery no longer benefited them. The North also wasn't more technologically advanced, they just had a larger population of poor people willing to work in factories.