Assuming I understand the argument flow correctly, I think I disagree. If there is one thing that the past few decades have confirmed quite conclusively, it is that people will trade a lot of control and sense away in the name of convenience. The moment FSD reaches that sweet spot of 'take me home -- I am too drunk to drive' of reliability, I think it would be accepted; maybe even required by law. It does not seem there.
The level where someone personally uses it and the level where they accept it being on the road are different. Beating the average driver is all about the latter.
Also I will happily use self driving that matches the median driver in safety.
So nobody will accept it.