@Kendodd
While my politics generally lean to the right, I am entirely in favour of an NHS which is taxpayer funded and free to all (legally here).
Given that you lean to the right I wonder if you'd be so supportive of a 'free' health service if you didn't have health issues yourself? From reading MN some right leaning posters are very resentful of the money they put into other people's treatment. Personally, I don't see how it's that much different to how insurance works.
I lean to the left and am very lucky that myself and my family are all in just about perfect health and hardly ever see a doctor. Hopefully this will continue our whole lives and I am more than happy to have a better funded NHS and pay more tax for it even if I never need it myself.
No. That was also my view when I was younger and apparently healthy and barely saw a doctor from one year to the next.
It is the function of the state to provide services collectively to its citizens at the taxpayer's expense. Most people would accept that these include (in no particular order)
Military
Police, courts and prisons
Roads
Education for ages 5-18
Financial support for those unable to support themselves, particularly where that results from age or disability
Free or subsidised housing for those unable to afford it themselves
Subsidies for other forms of transport
Subsidies for industries where considered important for national wellbeing
Funding for important scientific and medical research
It seems it's only Americans who have difficulty with the idea of adding healthcare to that list.
Equally, arguments about paying for other people's treatment could also be made about paying for the education of other people's children by the childless or by those who have chosen private education, but never gain much traction here, nor, as far as I can tell, do they get much support in America.
Turning to insurance companies, as the state is not seeking to make a profit, then it should be able to provide healthcare more cost-effectively, provided it does so with at least the same level of efficiency. As well as the example I gave before, I think that there is a strong argument that senior doctors in the UK are often overpaid as they seek comparison with private sector professionals such as lawyers and accountants while happily accepting the job security and pensions that go with state employment and avoiding the risks of business. There may also be economies of scale. (Plus as a result of extensive experience both personally and professionally, I wouldn't trust an insurance company as far as I could throw it.)
But I can quite happily hold that view and also believe that wealth-creating industries are better off if they are only regulated to the degree necessary (and there can of course be debate on that) and that politicians are kept a long, long way away from their day-to-day operations.