Re: This is a nonsense
The only thing that started heavily shifting polls in Labour's direction
The polls never shifted in Labour's direction, they got fewer votes in 2024 than they did in 2019.
What actually happened is that moderate Tory voters got fed up with the succession of useless Tory governments who abandoned moderate Conservative policies to keep plodding along in the Blairite centrist middle ground, constantly increasing taxes & spending, and doing SFA to actually address the problems, while being convinced that everyone would soon "see the light". Sunak's idiocy in calling an election when everyone told him he'd get absolutely stuffed is a case in point.
Labour lost some "red wall" types to Reform, the Tories lost half their votes (7m+) to Reform and the LDs, not necessarily because they wanted either of them (neither was ever going to get enough seats to form a government) but simply to give Sunak a kicking in the hope that someone better would replace him. Since Badenoch is largely invisible apart from a bit of sniping at PMQs there isn't much sign of that happening.
Rachel Reeves seems to think that she can tax her way into growth, which never works, she needs to cut spending and taxes before all the people who actually earn money for the country get up and leave.
But hey, it's OK, 70% of people voted to keep FPTP two referendums ago, so we're all screwed.
Interestingly, if the 2024 election had been run on PR with seats proportional to votes, Labour would only have had 219 (instead of 411), the Tories 154 (not 121), LDs 79 (not 72) and Reform 93 (instead of 5). I don't see any likely way to make a workable coalition with a majority out of that (maybe Lab+LD+Greens? can't see that lasting) so we'd be in the same position as France is today. Still screwed.