Full self driving is still in beta test, with present dangers that you have to accept.
All the accidents that happen with Tesla autopilot use are driver error, full stop. Just like its driver error to get drunk and drive, or be looking down at a phone distracted, and rear end a motorcycle. As someone who rides, Id rather have roads full of Teslas with FSD, because for every time it fucks up there are vastly more times for it to avoid an accident, given that you are not going to get rid of drunk, high, or distracted drivers.