> If there is one hard problem that Uber has arguably solved, it's managing a fleet of drivers and their cars, with all the trouble such a huge workforce of mostly low-income people with low job attachment brings. It is this core competency of Uber that would be rendered worthless by autonomous vehicles.

Technology companies must be willing to disrupt themselves before the competition does. Your argument here is like saying Netflix should not have pursued streaming because it rendered their core competency of DVD-by-mail logistics worthless.