For it to be fair, because this is all about tax fairness in my opinion, and you're operating a taxi and Uber and you are essentially doing the same level of business, then you should be applying the same level of tax. Ideally if you're an Uber driver, Uber would change its policy to collect it at the fare stage, and whether it were the brokerage or the driver who remitted it, it would make an even playing field.
On May 15th, 2017. See this statement in context.