Financial pressures are largely responsible for the UK dramatic change of political direction. The overarching factor , apart from Tory incompetence never before witnessed in history, is the cost of fuel. Oddly enough, US foreign policy is responsible for the staggering UK fuel costs. By destroying the German/Russian Nord Stream pipelines Biden cut off Europe from cheap Russian gas. The new guy can't be described as a socialist- but he's the nearest practical thing. Time will tell. For sure- he's not going to click with the new French lurch into rightist fanaticism. Trump will though.
N.B. I studied British politics at post-graduate level. You can safely ignore anything that the Brit maggot, serendipity, has to say about it as hysterical angst. His hero- Bozo Johnson- is OFFICIALLY- a flagrant liar. He's another factor in this latest Conservative wipe-out. He partied while the UK wept over their Covid dead.