The US private healthcare system will be inefficient because it tries to apply market solutions across the board for a problem that isn’t well served by the market.
Yet it’s extraordinarily inefficient because the private sector fights against any level of price-of-service transparency, which means even market forces cannot and do not apply.
This problem has been well-studied and the solutions (more than one) are also well-known.
The magic wand here is the blinders that have been pulled by politicizing healthcare.
Look at South Korea for a palatable (to conservatives) example.