the two party system is a result of FPTP voting.
See "Criticisms": https://en.m.wikipedia.org/wiki/First-past-the-post_voting
Exactly. It’s not exactly brain surgery, when 51% of the vote gets you 100% of the representation voters will strategically gravitate towards two parties.
The founding fathers didn’t have a lot of well functioning democracies to look at so when they made our system they screwed its up.