Please read the rest of the post, it addresses your concerns. If we're unable to stay on topic I cannot continue this conversation.
Unless I'm wrong you're arguing that Uber is safe and efficient because market forces made it so. It's efficient because of technological advances and it's safe literally to the extent required by law.
Because they've opted out of the regulations their competitors are subject to Uber could offer a a more dangerous and less efficient service than current taxi companies and still "compete".