I think I agree with the tweet below
which is arguing when you dive into the numbers Labour/Starmer hasn't really won any new voters over since he has been in charge but the Tory vote has collapsed, which has pushed Labour ahead in the polls
But Labour are still on around 32% which is where Corbyn was in 2019 and was apparently a disaster and the Tory votes have shifted to don't knows and Libs
It would be great if shifting to the "centre" Labour was winning over more voters but the story is currently about the Tory vote collapse
They're all just guesses so who knows?
It's likely Labour won't have as many votes as Corbyn won in 2017
The Tories have caused themselves problems, no doubt about that, but to try and use those numbers to claim Labour hasn't gained new voters is a lie, the weighted Labour number is up 26% (Tories down 56%).
Using the weighted raw numbers, Labours vote share has gone from 37% (of Tory/ Lab/ LD numbers) to 60% (of Tory/ Lab/ LD numbers), which is a 23% increase.
The tweet is not a "dive into the numbers", it's a poor assessment, and would be a classic example for the "how to lie with statistics" book, and it would be in the section titled, "bad examples of how to lie with statistics".
There is a % shown in the top table, but they're not percentages (need to figure those out yourself), it's raw data and the weighted sample is not weighted to create percentages in that snippet. Full table is here
https://docs.cdn.yougov.com/oht4c3czaa/TheTimes_VI_230706_W.pdf
Assuming LAB/LD/ CON is representative of the nations likelihood to vote, what it does show is 1348/2062 (65%) voted in 2019 and current intention to vote is 1043/2062 (51%). Even though overall voter numbers are down 14%, Labour are still up 26%.
But, the key thing, and what the survey didn't ask or show, is what has likely happened.
Effectively the left voters (lots of examples are vocal on here) have gone into greens or saying they won't vote (they're not don't knows who could vote LD or Tory), these people will not vote in a way to damage Labours chances, as much as they may not agree with Labour currently. Sure, the loss of the voters might help enable the Tories, but any seats which are winnable it won't matter as they will be replaced by don't knows between ex Tory/ Labour or those who jumped ship in 2019.
Howe many of "the left" are we saying that labour have lost? 10-20%? So they've gone, yet the Labour number is still up 26% in actual numbers. So who are the extra 36-46%? They're new voters, or those who didn't vote Labour last time.
Then, so now we've cleared up that Labour have gained and retained better, a lot of that reason is because they see the leader as a much more credible alternative, and know that losses to Tories make things far worse, and it can always get worse for the most worse off, as the Tories prove, every time they "win".