There's a little more at stake here
While Uber may essentially be a private hire taxi company their technology does chip away at the advantage that black cabs traditionally enjoy over private hire: the ability to pick passengers up on the street. Although an Uber driver can no more do this legally than any other private hire operation the nature of their app reduces the time between booking and pick up, to the point where the time/convenience difference in hailing a cab and booking a private hire is negligible. This is what the cabbies really don't like and I gather that they are pushing for a mandatory waiting period of (5 mins IIRC?) on Uber bookings.
Anyhoo, death to the TNTs! Too many of these slimy facilitators running around stitching people up with tech snake oil.