I assume, then, that you agree that we should increase the taxes on goods and services, the taxes that everybody pays on a daily basis, to be more in line with those other countries?
Unfortunately the numbers say yes.
The U.S. is #8 in the world in debt to GDP ratio, and budgets are annually in the red, so we either don't take in enough tax revenue as it is, or we spend too much (or both).
Health care expenses in the U.S. are out of proportion to the rest of the world, so regardless of how it's paid for, it is a problem that needs to be addressed because it's not resolving itself by free market economics.