I would say no to driverless cars even if it was 1 life lost per decade globally if it took us thousands of driverless car deaths to perfect the technology.
Very interesting point of view - in your eyes, one death due to an autonomous vehicle is worse than a million deaths due to human drivers. Because reasons.
You're saying that unless we can reduce deaths to absolutely zero, there's no point in reducing them at all. Do you also live the rest of your life by these beliefs? Why bother making money if you're not going to be the richest person in the world? Why bother exercising if you're not going to be the fittest person in the world? Why have hospitals when they can't save 100% of patients?
One of my biggest fears is that legislators will have such viewpoints as yours. But so far it's looking pretty good. Most legislators seem to agree that reducing death is a sensible course of action, and autonomous vehicles are a guaranteed way to reduce death.
Only seems to be armchair warriors who are terrified of technology that would rather drive a vehicle themselves even it it were statistically proven to be a billion times more dangerous.
It's worth pointing out that when a computer makes a mistake, the mistake gets fixed, and no computer ever makes that mistake again. The same can't be said for human drivers who aren't able to learn from other people's mistakes.
But here I am with my silly opinion that less people dying is a good thing.