You can define it however you want. By any common sense definition of safety Tesla has not proven that their autopilot is 'safer' than a human driver.
>10x or 100x the number of deaths would be small price to pay to get everyone in autonomous vehicles.
This supposes a couple things. Mainly that autonomous vehicles will become safer than human drivers, that you know roughly how many humans will have to die to achieve that and that those humans have to die to achieve it. Those are all unknown at this point and even if you disagree about the first one (which I expect you might) you still have to grant me two and three.
Can Autopilot not run passively and prevent human errors? Why are the two options presented seem to be only "only a human behind the wheel, not assisted by even AEB" and "Full autopilot with no human in the car at all".