Alexander Hamilton wanted to "assume state debt and establish a national bank". However, his plan would have the government assume state's debt which would benefit where Hamilton sat politically, which was obviously quite controversial. As well as this it was really long, so most people didn't understand it.
Hamilton also argued that centralized debt would ease the flow of capital through the new nation.
Explanation:
Just listen to cabinet battle #1 from the Hamilton musical.
Nationalism is a overwhelming patriotic feeling and principles. And it took the Romantic love for nature and human connection and turned it into a love for a nation.