Interesting article: https://uk.reuters.com/article/uk-britain-election-spending/britain-set-for-1970s-public-spending-levels-as-parties-woo-voters-report-idUKKBN1XE01D
Even the Conservatives are promising to spend lots of money (I suppose there are people gullible enough to believe them).
Article notes that the UK has lower government spending as a percentage of GDP than Germany and France. Yet both of those countries have a higher overall standard of living than the UK. Hmm ....