That's the logical extreme, but that is not what free market economists actually say. The GP is accurate.

The free market is a great tool, but no tool is universal.

Why are we more concerned that we stick to an ideology - it's treated as a fundamentalist religion, treated as the solution to every problem and something with which any disagreement or deviation must be shot down - and not the people who are rich or poor, safe or suffering, educated or not, healthy or not, etc.