> It's of course a problem when regulators disallow them to leverage this large class of drivers. When they are forced to operate like a taxi operator, a big part of their value proposition is gone. This is bad for consumers and Uber, but good for taxi operators.

It's only good for customers when they need to get a ride for certain times and only for some time. One of the reasons why taxis get regulated is because taxi companies need to guarantee service throughout the day. Drivers who only drive on the side will not provide that service, moreover if the regular taxi drivers are driven into bankruptcy because of uber drivers taking all the profitable times prices on average actually go up and especially for off peak times.