(from page https://en.wikipedia.org/wiki/Transportation_safety_in_the_U... )
Furthermore self-driving cars are at this point ONLY driving through areas with a lot of pedestrians. You'd expect them, therefore, to have much higher accident fatalities than normal vehicles. Why ? They're always around pedestrians. Instead, in the first years of operation, they're safer than humans.
Even with Uber's less than stellar safety practices, and Tesla's ... well ... how do I put this politely ? [1] seems a good link. Let's just say Tesla owners could be more careful, especially since they signed a contract stating that they would be more careful (and youtube has much worse than that video). Given that that's how people use self-driving cars I would argue that's pretty damning for human driving skills.
Self-driving cars might be able to beat that, but most of the self-driving car models aren't even close to 100 million miles driven.