Looking at the total healthcare expenditure before covid, it consistently hovered around 10 per cent of the total British GDP.
https://www.statista.com/statistics/317708/healthcare-expend...
If this is underfunded for you, how many per cent would be funded enough?
Accidentally, the EU average is about 10 per cent, with 12 member countries scoring less than 7.5 per cent of GDP.
https://ec.europa.eu/eurostat/statistics-explained/index.php...
From what I see, the British values seem absolutely normal to me, and healthcare results (life expectancy, 5-year survival of cancers) are just fine, especially given how fat British people have become.
What percentage of GDP would be needed for that? That question would require a lot of data and analysis to answer, far more than would be reasonable to expect for an HN comment.
Accordingly, the Conservatives gave lucrative contracts to all their friends.
The current Labour party are useless holding them to account.