[ConservativeMind]

But why would you call the benefit “unfair” if they all agreed to it?

But why would you call the supposed import tariff and its use “unfair” if they all agreed to it?

That is why a legal framework was to be followed. Because all agreed to make the status quo what it was and became.

[DiogenesLamp]

But why would you call the supposed import tariff and its use “unfair” if they all agreed to it?

They didn't all agree to it! The North wanted it, and the South was against it. (Because they were paying most of the costs.)

Why would you say they all agreed to it when it was the bone of contention for decades?