Welcome to the new America where basing opinion on data is too inconvenient. Not sure what you think my POV is. I favor single payer health provider systems but also believe some single-payer systems work better than others. In this specific example it appears that the Japanese system works better than the British one even with the same number of doctors per capita.
I think it is worth asking why that is even if one has to look at a graph or two.
My bias is that it is mostly because the average Japanese lifestyle is substantially healthier than that of the UK, particularly with respect to obesity. This means that on average, Japanese doctors have less to do per patient and so can more efficiently handle more patients.
Here is where I think we differ. You want to solve the British health care system by spending more money over a long period of time to expand the system so that it can adequately take care of the population. I instead want to motivate a healthier population so that the existing health care system is sufficient. I think my strategy will cost less money and be more effective. In fact, I think it is the only possible long-term solution.
This is because I think it is impossible for a nation that is simultaneously rapidly getting older AND becoming obese to have an effective and affordable health care system. It doesn’t matter what the system is, single payer or multi-payer, private or public. Given declining birth rates and longer life spans, if we don’t end the obesity epidemic soon all health systems will crash and burn.