Nah it took a massive media onslaught to kill Corbyn. Kier is just that shit and has been totally ineffectual at calling out the failures of the Tories throughout the pandemic, and in response to his floundering polling numbers decided to rebrand labour as “more pro business” losing even more people. So he’s just that shit.

The real takeaway is that the actual organized working class in Britain is dead and died decades ago. Scotland realized southern England loves the Tories so much they'll literally destroy the Union to keep them in perpetual power, so they fled for SNP and Labour lost what constituencies they had there. That leaves some legacy constituencies in the North and maybe Wales too that despise the Tories, which really isn't enough to outnumber the rock solid Tory base.

Thatcher killed the organizational base of the party, Blair sacrificed long-tetm credibility for short-term electoral victories. So once the Blairite shot in the arm committed suicide via Iraq and the 2008 crisis, Labour is pretty much permanently a controlled opposition party going forward.

It's really truly done now.

I live in a very working class bit of the North West and have working class Northern friends and family everywhere. A quarter of them will never vote for Labour again due to their Brexit disaster, about a quarter are in their teens-30s and were burnt so badly on the party undermining itself they'll never go back, and about another quarter are old socialists who are old enough to know that Corbyn was a very brief window of opportunity and Labour is done for another generation or more.