The American system of elections is old and it is apparent the Founding Fathers had no Idea as to how the game theory of elections would play out. Worse, they even picked a system of government that was more prone to a two party system than the United Kingdom due to the direct election of the Executive and the inbuilt separation of the Executive and Legislative branches.

Israel, as genocidal as it is, has a system which encourages minor parties to get elected. There are 16 parties elected to the Knesset out of 120 total seats. However, Israel has a unicameral legislature, there are no individual districts or constituencies, and the legislature selects the head of government.