I’m sure there’s a plethora of companies ready to move in and take their business.
There's a lot of companies and cooperatives from a quick look. Even cities rolling their own. Uber/Lyft is handing an entire market over to a lucky competitor,
Right?
As an extreme example, if they regulated minimum $1000 per ride. No logical person, free market oriented or not, would expect "alternatives" to take their place.
That was my point, since in fact no market is free