The absence of a uniform tariff rate benefited British exports to America.
The debate was about a strong national government versus basic civil liberties. If it hadn't been for the debates on the amendments, who knows what would've been added and what not. Thanks to the debates, things like the right to bear arms and the right to refuse to give your home to the army were added, as well as things like the states having the right to decide things that are not decided by the congress.
Neolitihic revolution refers to the revolution that transform mankind's lifestyle from hunting/gathering into agricultural.
In an agricultural society, each member need to coordinate with one another in order to determine land's ownership and trading regulations.
Because of this, a mediator such as government is needed in order to make everything fair.