I don't understand how what we have now isn't proportional representation.
People vote in primaries and in the general election, the winner has a majority.
I don't see the current system changing, unless "ranked choice" is used, which isn't popular.
Let me explain.
I'll explain with Belfast South constituency from 2015. Yes, I know it's the UK, but it's a really great example of FPTP (and no, I've never been to Northern Ireland)
en.wikipedia.org
The SDLP won the seat. 24.5% of people voted for their candidate. Which means 75.5% of people DID NOT VOTE for the SDLP.
But they got to represent that constituency for two years.
If we zoom out the SDLP got 0.3% off the vote in the whole of the UK and got three seats. Or 0.5% of the seats.
UKIP, a MAGA style anti-EU party, got 12.6% of the vote, and they only got one seat. The Lib Dems, got 7.9% of the vote and 8 seats. The Tories got 50.8% of the seats but only 36.8% of the votes.
What did the people want?
The people of Belfast South clearly didn't want the SDLP, however that's what they got. Of some miracle they got more or less what PR might have given them. However all the other parties got wild results compared to what the country wanted.
Then if we look at, say, Germany, we can see that in 2017 the AfD got 12.6% of the vote, the same as UKIP in the UK and got 90 seats, instead of UKIP's one.
The real difference between FPTP and PR are this:
1) It's very difficult to buy an election. In the US House elections there are many seats which could go one way or the other. So the big money rolls up and throws dirt, because it's easier to be negative than positive.
2) It's very difficult for the voter, with FPTP, to change anything. The voters have no control. With PR in Germany the voters got fed up with the CDU/CSU so they voted for the AfD, both are right wing parties. You're not throwing away your vote, the CDU/CSU could, potentially be in coalition with the AfD, the right still keeps its votes.
In the US if you want a protest vote, you either vote 3rd party, your vote is meaningless, or you vote against your wing of the party, which gifts to the other wing.
In the UK Labour and the Lib Dems are both left wing parties, and mainstream. While on the right, until recently, it was only the Tories. This gave a HUGE advantage to the Tories.
From 2010 to 2024 the Tories only got more votes than the two left wing parties once, but were running the government the whole time.
3) Politicians under FPTP are more likely to look to the money. Get the money, do the bidding of the rich, and you will win because they'll throw money at you. With PR you need to have policies that appeal to people. Governments need to be competent, or they will either get voted out or see a reduction in the number of seats.
In the US, the Reps and Dems win all the time, if they lose this time, then there's next time. In Germany, potentially, a third party could overtake a main party and destroy them, within years.