Saying "It's capitalism" isn't a justification for anything; it's overly reductive, and we do not live in a purely capitalistic society.
If you feel tax rates are generally too high does that make it OK to cheat on your tax return?
Would it work better if people could choose not to educate their children and instead spend the money on other things?
This will probably depend on where the driver lives and works. There is also the question of whether they are a 'broker' or not with another taxi, meaning they own their own car and also do Uber and/or Lyft on the side while working with another taxi service. Which is common.
In Toronto where our taxis are far less regulated than other cities like New York, allowing for more supply but higher per ride fares to compensate, all of the drivers I've spoken to have said they make more money per ride with Uber than they do with normal taxi services and always give preference to Uber calls over the dispatcher. Also they have been busier allowing them to do more rides per night worked.
Uber likely increases the amount of people taking rides in any city as it makes the UX easier to call a cab reliably, direct it, and pay for it.
This makes no sense to me. With excess supply, the prices should come down. You'd expect prices to increase when the supply is constricted, as it is during Uber surge pricing. It sounds like maybe Toronto cabs aren't playing by the regular rules of economics, as many other cities' cabs aren't, which is exactly why they've been so prone to disruption.
Indeed, I should have said the supply of cars is less regulated in Toronto, or at least it's not made as artificially low as it is in places like NYC (via medallion system which costs $1 million each). But the prices are still heavily regulated and they set the prices higher so the drivers could make money still as a consequence of having fewer rides due to the greater supply.
The big reason Taxi companies hate Uber is that it messes up their control of supply, keeping it artificially low.
http://www.odwyerpr.com/story/public/6471/2016-03-08/uber-ly...
We're in the best of possible worlds. But it's difficult to fault Uber to the degree some people do when customers express their demand preferences so clearly.