I'm honestly not worried about Reform/Farage, if you dig into the numbers, and how the vote went across the country, there's no getting away from their low vote share (which is basically the same as UKIP was polling at its peak when Cowardly Cameron shit himself and called the Brexit referendum) and small number of seats.
FPTP has distorted the results as it always does. I don't like FPTP, I've been consistent on that point for years and I'd still like to see the back of it, even though it's served Labour very well this time. So I guess me and Farage have one thing in common at least, it's time to change the UK's electoral system
So yes, Reform would have done better under FPTP, but 14% of the vote is 14% of the vote. As basically always happens in UK elections, the majority cast their vote for centre-left, progressive, liberal parties, and PR won't change that. In fact if anything it'd be an improvement as we'd see more voices contributing to that centre-left coalition.
You're always going to get a percentage of the population to vote for a party like Reform, or UKIP, or whatever form it takes at any given time, but they're never going to achieve any sort of critical mass in the UK IMO. France is certainly a salutary lesson in what happens when centrism fails the majority, although as we saw last night the electorate galvanized itself into action when it recognised a genuine threat from the right.
In the UK of course, we saw some pretty smart voting from the electorate, witness the great success of the Lib Dems on a similar vote share to Reform but getting vastly more seats, as the voters were completely determined to hoof the incumbent Tory out.
The main thing we need to happen in the UK now is that Starmer and Labour succeed. They have five years to make the country a better place, and to make the lives of normal folks better. 'Economic growth' is no good if it's just the wealthy continuing to make out like bandits at the expense of everyone else.
This is now Starmer's situation to lose, he has a stonking great majority and he needs to get on with the job straight away. Those traditionally left areas will swing back to Labour (or rather, the share of the vote that went to Reform will disappear) once they see the party doing something for them. I was watching an interview with Philip Hammond a couple of weeks ago, on immigration he basically said 'People don't care as long as their lives are getting better, it's when people are struggling that the issue gets some prominence'. I'll link it below.
All of this is dependent on Labour succeeding, if they drop the ball and we go into the next election with them having failed in their mission, then the likes of Reform will thrive, and that will become Starmer's terrible legacy. For now though, I'm glass half full, I've really changed my opinion of Starmer since watching that interview I linked above - I think he's a man on a mission, and he's not a man who likes to fail.
Anyway, here's the interview with Hammond, it's only ten minutes.