It's unfortunate that the US founding fathers were well educated, but from a time 200 years before Game Theory was understood.

Duverger's Law says that in a first-past-the-post system, you'll eventually end up with 2 political parties. And, 2 political parties is a terrible state for a country.

Also, you're eventually going to get political parties even if you try to ban them. They'll just become "clubs" or something. A group of people agreeing to act together (say a union) is always going to have more power than a bunch of people acting individually.

I would hope that any country thinking of creating a new political system, or making major updates to theirs would hire a lot of game theorists to figure out how the rules could be abused and what the system might look like in 250 years.