Canada has equivalent of Medicare for all. And Canada has at least some of these problems, for example longer wait times. These long wait times don’t ultimately affect average outcomes.
Being able to see my doctor for a health problem on short notice improves my quality of life but it probably doesn’t change outcomes as there is a very low likelihood that my problem is both life threatening and urgent. But choosing to pay doctors more to reduce wait times is not right or wrong - it’s just a different preference.
My point is that you don't see people spending extra to see private doctors in Canada despite it being a generally wealthy nation. There is more at play than the original suggestion that high spending is simply a function of being a richer nation with more money to spend on "extras" like short waiting times.
