>Especially when the self-driving cars are not displacing human drivers, so at the end of the day the roads are getting less safe.
what makes you think that? "Driverless taxis" imply they're being used to transport passengers. A robotaxi taking a fare means that there isn't a human taxi taking the same fare, so human drivers are essentially being displaced.
Robotaxis are cheaper than human taxis (in the long run), don't need to take breaks, etc. There's no reason to assume that taxi rides would remain flat if cost falls and availability increases.
what makes you think that? "Driverless taxis" imply they're being used to transport passengers. A robotaxi taking a fare means that there isn't a human taxi taking the same fare, so human drivers are essentially being displaced.