Well imho Starmer should have been aware of this, he has given them exactly what they all wanted.
Its now going to dominate the next few months, perhaps define his Govt especially should the budget increase taxes for ordinary people.
Consumer confidence has fallen off a cliff, partly down to a narrative that Labour are going to cost you a lot of money, which is true but the positivity of change isn't coming across, again due to ministers tying themselves in knots having to defend "gifts"
I think the media has succeeded in this narrative, i know many Labour supporters, without exception very pissed off with all of this, folk who worked extremely hard to give SE Cornwall its first Labour MP ever.
It is as one commentator said this morning "an own goal"