Nine episodes in, Radon Liz’s YouTube show is as laughably deranged as everA world on the brink. Regime change in Venezuela. Greenland under threat from Donald Trump. Shadow fleet tanker seized by the US and the Brits in the North Atlantic. The Europeans battling to keep America onside in any Ukraine peace deal. A woman gunned down by ICE agents in Minneapolis.So thank God that some things never change. Be grateful we still have Liz Truss. The UK’s lone fixed point. Our very own guilty secret. The prime minister we all try our best to forget we ever had, if only Liz would let us. But Truss is like that Japanese soldier who only realised the second world war was over in 1974. For Liz, global events mean nothing. She will keep fighting the Great Betrayal of 2022 for as long as she has breath. It’s all that gives her life meaning.The Bonfire of the Insanities by John Crace (Guardian Faber Publishing, £16.99). To support the Guardian, order your copy at guardianbookshop.com