Earlier quoted context omitted.
There are meaningful alternatives for your examples. If you didn't want to work at Applebees, you could work at Chilis. Right now, I would be willing to bet that a large majority of Lyft drivers also drive for Uber. Uber is so much larger that there is no real alternative. If the law makes it so that drivers can choose only one rideshare app, they will all choose Uber because its bigger.
This is an extraordinary claim, this has never been a problem in a major city in recorded history. The idea that Uber would pay drivers so much to have extra drivers just sitting around doing nothing is absurd. The idea that there would be no suitable drivers left to other firms to hire is absurd. If any of this claim made sence, then this would have happened 50 years ago, we've had drivers around for a while. Yet it…
This _has_ been the case in major cities around the world before Uber took over. NYC has the yellow cab monopoly. London had the black cab monopoly. These companies grew large enough to buy up all available labor (this was made easier by the medallion system).
Uber is no different. It _already_ has a dominant market position. Other rideshare companies _already_ share their drivers. The amount of drivers who drive for Lyft only is vanishingly small. If you force all those drivers to choose, they will choose Uber and Lyft will die.