I was describing our representative republic, not direct democracy. Local voices speak best for their own set of interests.
Because we aren't a direct democracy. We are a representative republic. That's the whole point of our system, areas elect a Representative to represent them in Congress.
No... That's the point I was making. If what you want is local concerns being voiced at the federal level, you'd institute a direct democracy. The fact that the American system is not that implies that there are more principles at work there than you think.
Let's play with an example. Let's say scientists come up with a plan to make the U.S. energy independent on a cost effective basis. The fuel source is sugar cane. Only a few (let's say six) southern states have the capability to grow appropriate sugar cane to supply the fuel.
Now, a competing system based on corn is already in place in twelve other states, but is only cost effective via federal subsidies. The economies of these states rely heavily on growing corn for this purpose, and instituting a plan based on sugar cane will set them back decades.
Should the senators of those twelve states vote and defeat the energy independence plan because in the eyes of their constituents, it's the wrong thing to do? Or do they act in the interests of "everyone" and vote yes?