The US system is closely based on the "democracy" as practiced in the city-state Athens. The following quote is from Lords of the Sea: The epic story of the Athenian navy and the birth of democracy; p.95

----------------

The oar and rowing pad of the common citizen of Athens might seem less poetical and glorious than the hoplite's shield and spear, but all the world now knew that the city's power rested on swift triremes and strong crews.

Abroad, the Athenian commoner ruled the seas. At home, he was still a second-class citizen. The law allowed to him a vote in the Assembly, but he was barred from holding public office.

The pressure of his daily work often kept him away from Assembly meetings. Athens was in fact less a democracy than a commonwealth governed by the richest citizens.

All archons and generals came from the ranks of the wealthy, and the bar of property qualification was set so high that even the ten thousand hoplites were excluded. The common citizen could do no more than choose his leaders: leadership itself was denied him.

-----------------

I believe the state of the average voter has not changed since then. And the system is eternal; human life finite. It is a waste of time to try to change the system.