The United States spends per capita, nearly three times the UK on healthcare in total, and their Governmental/Compulsory spend per capita is nearly twice what that the UK spends on the NHS:
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Furthermore, the US government's share of the country's entire healthcare spend, which is funded directly via US taxpayers, is forecasted to be 67.1% for 2024; meaning that US taxpayers pay more than we do per capita, via tax, even before they pay for their insurance premiums:
Objectives. We estimated taxpayers’ current and projected share of US health expenditures, including government payments for public employees’ health benefits as well as tax subsidies to private health spending. Methods. We tabulated official ...
www.ncbi.nlm.nih.gov
So saying that we "kinda already do" via vastly higher taxation is not accurate. The US system is a grotesque abomination.
Anyway, this direct comparison between the UK and other more comparable countries is particularly interesting I thought:
Icaro Rebolledo and Anita Charlesworth use five charts to compare UK health care spending with EU countries before the pandemic.
www.health.org.uk