Tourist,
The other thing to take away from those videos is that in almost all the cases we saw, the human was driving at totally inappropriate speed for the conditions.
A computer can be programmed to not do that.
Yes the speeding is the principal factor for accidents.
Not necessarily your fully automated car would protect you if another car will smash in you.
All cars should be equipped with speed limiter. It can be override, but automatically a ticket will be issued.