Sure, autopilot does better than the average car on the road. But there are parameters to control for. For example, the average car on the road is 10 years old

Sure, autopilot does better than the average car on the road. But there are parameters to control for. For example, the average car on the road is 10 years old, it's probably not very well maintained, and on average costs <$20k. You should compare the safety of a Tesla to the safety of a similarly aged, similarly priced, and similarly equipped car, for example one with active safety mechanisms. Plus, IMO the false confidence that Autopilot gives enables dangerous negligent behaviour from the drivers. Want to see the safest car? NHTSA publishes an annual driver fatality report, and there are car models that have never had a fatal crash. See the 2009-2014 XC90 for example.