Why do people accept that supply/demand works in so many industries when the private market is allowed to flourish, but won't accept it for healthcare, education, etc?
When? Because we don't use market solutions for those things now. Those are two of the most manipulated markets in the US. They also are two of the three industries whose prices increased by more than inflation, everything else has gotten cheaper (inflation adjusted) over the last several decades. Those things are related.