> The robotaxi can only compete on price because that's its only advantage.

With robotaxi you get a driver that:

  - never gets tired
  - never gets distracted
  - never gets drunk
  - never gets upset
  - never falls asleep 
  - has reaction time in milliseconds
  - ...

Of course it has tons of problems of its own, but it's not like price is the only advantage over human driver.