Accidents are caused by plenty of things that aren't humans. I had a distant relative die from a tree falling on their car at a stop sign. The world is random and unpredictable.
This entire conversation is about the small percentage of time that AI can't handle the situation. And you haven't addressed that point. And neither have AI companies. And that's why they aren't succeeding yet.
And you can't just say those situations don't exist. They clearly do. And it's not because human drivers are out there. Road hazards, shut down roads, sink holes, extreme weather, these things all exist.
I'm starting to think you don't have much experience on the road. How long have you been driving for? Have you really never come across a unique situation that you don't think an AI could handle? Have you never driven in a city?
Twos-day.
Won chew free, innit?