Waymo has already proven that they can drive without any human in the car. Tesla have not, at all - and as this article points out, their cars continue to make major driving mistakes, like driving into an on-coming train, running red lights, driving on the wrong side of the road. These are not subtle issues. So I see no reason to assume that they'll ever work without the human driver.

Remember also that FSD can't even be trusted to drive the 2 miles of one-way tunnel at the Las Vegas Loop - even those cars require a driver today.