Things actually worked last November. Just because you don't like how America voted doesn't mean the system's broken.
Depends on what you mean by "worked".
In the US system you have people on two different sides telling people what to think.
The Koch Brothers picked up on the idea in 1980 after losing the Presidential election (one of them was VP candidate for the Libertarian Party).
Instead of trying to get elected, they decided to change right wing politic. And have they changed the politics? Definitely. It's gone crazy.
And the Democrats have gone crazy too.
So, people are growing up with this crazy politics and thinking it's NORMAL.
Now, let's take Germany.
They also have a crazy right wing party, the AfD. They actually did well in the last election 10 days ago.
They got 20.8% of the vote. Although this was higher in former East German regions and lower in former West German regions. Why do you suppose that is? But the AfD didn't get enough to lead a government, the CDU/CSU got 28% of the vote, so it'll be a coalition of CDU/CSU and AfD and die Linke.
But what does this say?
A) that in Germany they have political parties that represent different political thoughts. So you have traditional left, traditional right, center right, green left, further left and further right.
B) People have a choice and don't need to vote NEGATIVELY.
In the US people who are fed up with the Democrats don't get to vote for another, different, left wing party. So they can choose to vote AGAINST the Democrats or AGAINST the Republicans.
In Germany, they just vote for a party they think will represent them.
C) It's easy to punish political parties.
So, the SPD were in govt, people think they did badly, so they didn't vote for the SPD. They went from 25% in 2021 to 16% in 2025. That's 9% of people who stopped voting for them. That punished them severely. Die Linke gained 4% of the vote.
So, overall German politics is much more healthy. The PEOPLE have control over their politics. THE PEOPLE decide who their government will be.
In the US, if the country had PR, many people would NOT vote for the Reps or the Dems. Looking at Germany where 27% of the country voted traditional right and 16% voted traditional left... that's 43% voting for the main two parties.
You can see why the Dems and the Reps put so much money into telling people they're the only solution, and nobody talks about changing the electoral system, because they'd lose out, and the country would benefit.