>A leader that fires people for challenging relevant mainstream opinions is not any kind of leader I want to work for or follow.

There we go...most of the skepticism about self-driving cars appears to be driven by ideology and less by the actual evidence. "Mainstream opinions"...it is not an opinion, there are literally thousands of these cars being tested/piloted and improved upon constantly.

Might it take a little longer to get to nirvana? probably, but it borders on delusion at this point for anyone to say it will never happen.