Historically, people turn to the far right when things are going terribly wrong. The conservatives ran the country into the ground and legitimised everything the far right stood for, then were upset that people started voting far right. I say it was unsurprising. Why not vote Reform if you're a rabid racist and your usual party are about the same policywise but have a boring British Asian leader instead of a white laddish thug of a politician?

If things get significantly better for folks, there's less motivation to vote in desperation.