This is the kind of thing I mean when I say that some of the Tories' own goals should be partly credited to Starmer.
It's similar to all the ridiculous flag shagging: that suddenly paid off when Sunak made the unforced error of bailing on the D-Day celebrations, which left Labour an open goal but only because Labour had set themselves up well in the first place. There's suddenly an obviously 'patriotic' party for the people who think that matters (and that it's indicated primarily by flag shagging). Ditto the Truss budget. Labour wouldn't have benefited from that if they hadn't already been banging on about fiscal responsibility.