Federalism is the system of government in which power is divided between a central government and regional governments; in the United States, both the national government and the state governments possess a large measure of sovereignty.
A free enterprise system is an economic system where a government places very few restrictions on the types of business activities or ownership in which citizens participate. This type of system is often referred to by others as a free market, or capitalism.
Alright my friend so let's look at it this way the south was all for slavery and they didn't want it banned and the Wilmot proviso bill was to ban slavery and that is why the south had opposed it.