If one were to select friends on the basis of not "reducing and stripping the tax base that provides first world benefits", then one might be pretty lonely. I reckon every single person that you know or company that you can or can't name does just that, including those taxi industry.
If you're referring to off-shoring earnings to tax havens, then you are absolutely correct. But there is a level playing field for the many companies choosing to participate, including Uber. I doubt you'd find too many arguments against closing that loophole.
My opinion is probably more popular than yours: If the taxi industry was too short-sighted or arrogant to respond to the disruptive technology, then that's it's own fault.
I have a rating of 5.0 from 10 rides - all between my house and CBR. Never had anything other than a positive experience. It's been win-win for me.