My understanding is that they would like to do that but they won't or can't. Jeremy Corbyn would have liked to have soaked the rich but Keir Starmer isn't that type. If Labour raised taxes it could help with the fiscal situation, at least in the short term, although some are going to argue that it would hurt growth in the long term or drive away millionaires although it seems oligarchs from all over the world want Nth homes in London no matter what the cost.

The Economist liked the conservatives back in the Thatcher days but has no love for them as they seemed about as rudderless as Starmer does. It's often though that fiscal problems and the resulting austerity drives the growth of the far right but so far it seems when the far right gets some power in Europe it behaves the same as other parties for the same reasons.