Do you actually have any idea at all what the regulations are for taxis? Here are some of the rules that 'only represent one tiny class':
Here's the deal--no matter how good taxis are, no matter how much benefit they confer, no matter how much some people prefer them, there're some people who prefer Uber, or some other service, to taxis. Some people who have a choice choose Uber instead of choosing taxis. That means, to those people, that Uber is better, to them, than traditional taxis would be, to them. Now, the taxi operators and politicians beholden to them don't like that. They want to remove that option, the option that the people prefer, in order to force them to choose taxis, which is what they don't prefer, or to choose nothing, which they also don't prefer. That being the case, it doesn't matter how good taxis are, it doesn't matter how many benefits that taxi operators and owners can tout. It doesn't matter how many benefits that politicians can tout. It doesn't matter how many benefits that shills on Slashdot can tout. It doesn't matter how many benefits that you, if I haven't already mentioned you, can tout. What matters is what people want and are willing to pay for.
I hope I've cleared that up.