If we broke Uber into 1000 Uberlets, it still doesn't change that their only path out is still to be first in replacing all drivers with AI. As pro union, pro minimum wage, pro health benefit, pro 3 day weekend as I am, taxi driver jobs are still not coming back. There just aren't going to be sustainable mining towns or fishing towns or trucker stop towns.
This doesn't answer the humanity in 2050 question. And we need to start answering that question now.