This is a larger problem than just livery drivers, automation threatens nearly every industry over the next 30 years. The vocations requiring less training will go first but eventually jobs that no one expected will become automated.
This is a bigger societal problem than just livery drivers, what do we do when there is no work for people? What do we do when technology drives the market value of an individuals labor to zero?
To be clear, I don't believe letting them kill themselves is a good answer.