Great, let Uber do all that. Set working hours, deny them from working on other platforms, deny them from being able to refuse rides. And let the free market

Great, let Uber do all that. Set working hours, deny them from working on other platforms, deny them from being able to refuse rides. And let the free market compete for drivers by allowing other "gig-economy" companies to not have any of those restraints and seeing which company attracts drivers and which one dies.