As for "Uber drivers can just quit", I think that's a very simplistic argument. Uber are pricing competitors out of the market (using venture capital!), turning what used to be a fairly decent job into something that's barely enough to scrape by on. The people likely to driver for Uber likely don't have as many options, and probably fewer by the day as jobs that don't require are lot of skills are increasingly being turned into temporary jobs and platform gigs. I'm from Scandinavia, which has a very high degree of social cohesion and low economic inequality, and I see it very mch as a regression and a danger to society.
That hasn't been true in the US. In NYC Uber drivers make $30/hr and don't have to work under the existing exploitative Taxi system where they could actually lose money on an unprofitable day. Also, Uber has brought car service to smaller cities (e.g. Mountain View) where there used to be no Taxi system at all (in fact airport taxis would price gouge you for going SFO -> South Bay). Maybe Europe is different but I don't think you can make blanket statements like that.
"Driving a Taxi, Difficult in Best of Times, Gets Tougher"
http://www.nytimes.com/1995/04/09/nyregion/driving-a-taxi-di...
[1] well some of their car lease deals seem sorta like locking people people in. But I don't know enough about them.
You might think that's ok, but in societies where we have agreed that having people go without healthcare or housing, or letting people starve is unacceptable, predatory employers end up in effect subsidised by the state, and those subsidies hurt both tax payers and more ethically run competitors.
https://ww2.kqed.org/news/2015/04/24/one-uber-drivers-story-...
This part in particular:
> When Brunelle got home, he realized he had signed a loan with a 22.75 percent interest rate. That means he will end up paying around $49,000 on a Kia Optima that normally retails for about $25,000.
It really makes me question the morals of the person or people who signed off on both of these.
Edit: I mean, the loans are terrible enough, and then they try to make the same drivers redundant? Disgraceful.
Another likely possibility is that people often think their cost to drive someone is just gas ignoring cost of of car registration, insurance, car maintenance etc. Ignoring other costs the Uber's pay seem attractive.