Waiting lists were operating okay until the pandemic. I'm not sure the Tories were responsible for Covid and its impact. Burnout and staff wanting to leave the NHS or work more part time coupled with Brexit has led to massive workforce shortages - which will take 10 years to address. But at least the Tories have now produced the NHSs first long term workforce plan. Another significant factor was public spending during the pandemic to shore up businesses and the self employed and the need to spend a lot of money (some misspent) on procurement, vaccination, testing etc. This has led to a massive hole in public finances made worse by inflation that will be inherited by the Labour Party if they win the next election.
I'm not sure the Conservatives are fully responsible for the fact that at least 7 hospitals riddled with RACC now have to be re-built rapidly. Though chronic underinvestment in capital assets in the NHS has been a feature of the NHS funding crisis at least since Cameron's austerity measures if not before.
One of the biggest pressures on the NHS is the lack of investment in social care - I believe successive politicians have proposed solutions from Andy Burnham, to Theresa May to Boris Johnson but none have found the money to do so. And of course the need to shift more money away from hospitals into prevention and primary care. Not a priority well understood by the public.
Sure Labour could put up taxes but with the cost of living crisis can the public afford it? So they are unlikely to have any more money to spend. And Labour cannot reverse the impact of an ageing population and the rising demand for health services that that creates. Nor the fact that the impact of this demographic change is that there are now less people of working age to pay taxes for public services.
Research has shown the all the increased spending by Labour on the NHS from 1997 - 2005 had 0.01% impact on increased efficiencies - most went into salaries and large parts of the NHS have been privatised for many decades - eye care, dentistry, non urgent surgery, social care. GPs have always been private businesses delivering public services since the NHS's inception. It was no different under Labour.
So I can see a variety of causes for the crisis in the NHS: rising demand, demography, the backlog created by the pandemic, inflationary pressures and the national debt, brexit. It's too complex to say it's all the Tories fault. Any long term solutions will likely need to cross party support, a fully funded workforce strategy and/ or a different model of funding - social insurance seems to work very well in many other countries.
In short it's complicated. And I'm no Tory!