So why aren't the Tax drivers protesting against the regulation? Their decision to protest tells you where they see more benefit.
You may keep on saying that this is not about their stance against digital innovation, but the fact is that its all about economics.
Taxi cabs in most major cities run on a Medallion system, its an artificial limit on the number of cabs that can exist in the city(sometimes done because of lobbying by the existing cab owners, sometimes to reduce the number of cabs in the city). This restriction causes the price of Medallion to be artificially higher than it should be. For instance in NYC, Medallions are now sold for upto $1 million. http://www.nytimes.com/2013/11/15/nyregion/1-million-medalli...
Why do people pay $1 million to own a cab? Because this is the aggregated value they estimate to be, based on the number of years they will operate the cab for(and the profit they will make from it). This is precisely why most cab owners in the NYC are immigrants who can barely speak English, because only they have the savings to own and operate a cab.
Imagine you having spent $1 million to acquire a cab medallion, would you support any measure to increase the number of cabs in the city? Nope! That's precisely why all measures against increasing this number is heavily resisted by the cab owners. The value of their capital asset goes down if the number of cabs goes up in the city. You'd think that they would be ok with bringing Uber under the same medallion system but that position would be completely contradictory to their economic interest. They have, in past resisted increase in number of medallions, so that makes no sense for them to even remotely support bringing Uber under the same licensing system.
This is also the reason why the slave owners of the south resisted abolition of slavery. A slave stops being a 'labor' input in your profit and loss calculation, and becomes a capital asset. Its value is derived from the total earnings anticipated to be made in the lifetime of the slave. Consider it like this, if you are a programmer who can make $100K a year, and has a working life of 20 years, then a slave owner would be willing to pay you upto $100K*20 = $20M to posses you, of course he wouldn't wanna pay $20M, because then he would make no profit, plus there is a risk potential involved, running away or death, so like $10M. Now if a slave owner pays $10M to acquire you then there is no way he would wanna set you free until he at least recuperates that cost.