What's wrong with the voting system? As one of the first and arguably greatest democracies (until perhaps recently?), the voting system is one thing that stands out as equal and fair when considering populations of different densities.
It’s literally the mechanics of the vote and how it encourages voting not for your favorite candidate, but the candidate most likely to win that isn’t the worst candidate for you.
The two party system makes negative campaigning far too effective. If there are more parties and one spends its resources making another one look bad the others would also benefit from it.