There must be short term pain - in 15 years you can have a lot more doctors, but we have to get them through school and residency first, and everyone already in the industry needs to work even harder to do that.
Demand for healthcare is super high and supply of doctors is low. And you're arguing _against_ increasing the supply? The status quo isn't a valid answer -- if doctors are already at the point of burnout, something has to be done to fix the long-term problem that has brought us to this point.