You forgot the most important issue: Tesla drivers are not representative of the average driver. They have more money and more education. They live in places with nicer weather. These all contribute to lower crash rates without self driving. I bet high end Mercedes have lower crash rates too, because people don't defer maintenance and then drive them crazily in the snow.
Compare apples to apples and I bet Teslas have average crash rates for luxury cars.
You forgot the most important issue: Tesla drivers are not representative of the average driver. They have more money and more education. They live in places with nicer weather. These all contribute to lower crash rates without self driving. I bet high end Mercedes have lower crash rates too, because people don't defer maintenance and then drive them crazily in the snow.
Compare apples to apples and I bet Teslas have average crash rates for luxury cars.
Why don't you support your hypothesis with data?