Maybe, but those (perhaps except the first one) are
absolute requirements for a functioning system.
If a market based solution can't work with these restrictions, then the obvious conclusion is that you have to give up on market-based healthcare, not that you have to allow anyone to prescribe medicine, or have hospitals which won't treat dying people because they can't pay.
If a market based solution can't work with these restrictions, then the obvious conclusion is that you have to give up on market-based healthcare, not that you have to allow anyone to prescribe medicine, or have hospitals which won't treat dying people because they can't pay.