Uber is making its money from not paying what any legitimate taxi driver must pay or any taxi corporation must pay to meet the regulations and obligations. In short, Uber is making its money by cheating on the free market. Should they have to incure the same costs as the regular taxi industry as a whole you would be legitimated to talk about free market. But they just don't. Making money by cheating is easy until you get caught. Now, they are lobbying to evade the rules and regulations.
Are they cheating or are they choosing to not participate in an artificially restricted market by creating an alternative?