[Retric]

First off, most Americans live in city's, but rural voters would still be just as valuable as anyone else. So, the real change is removing extra power from people who only got it from accidents of history. Not necessarily a bad thing.

Second, having rotating senate elections, many votes requiring more than 50% to pass, and lifetime appointments to the supreme court are all designed to hold back a pure majority.

PS: I would suggest national proportional representation to the house, and instant runoff elections for the senate and president, with senate boundary chosen by a fixed public algorithm.