Sheesh! The point of self driving cars is to reduce the chaos and death caused by human drivers. It's absurd to claim that self driving cars can't be allowed while there are human drivers.
Just face the facts: Autopilot — which is no where near as good as what will be autonomous driving — reduced Tesla's crash rate by 40% versus the same set of drivers without it. When (not if) it gets to level 5 autonomy, you can reasonably expect it to be five to ten times safer than humans. Asking if it will be 100% safe is also absurd, so just don't do it. Nothing is 100%, but autonomous driving will be much safer than human driving.
If you think that any engineer could possible conjure up any possible move another human inside of car could pull off while driving, then I believe that you are in for huge surprise.
I am NOT saying that what is inside of current cars that help humans recognize danger etc. is NOT improving on crash statistics. But they are NOT self-driving NOR autonomous which means self-government. Neither does TESLA.
The claim here is a self-driving car. And THAT axiom will remain the figment of the humans' imagination for 100 years to come... And by the time it will be ready, we won't drive cars no more.