[threedots]

I think the point being made is that Uber is externalising cost onto society by (among other things) hiring its drivers as gig workers and not as proper employees. That is quite separate from whether or not Uber is making money.

[JAlexoid]

So... Uber should buy cars and hire people? Then they have to ensure that people stay at work for X amount of time... and they can't work at night without overtime.

You're basically saying that Uber should just close and we get back to the fraudsters that are minicabs. Awesome! Let's make people poorer because "social justice".

[alentist]

That’s not what externality means. That you don’t like something doesn’t make it an externality.