This is obviously true. However, I never heard these critics say that about cars without autonomy features. Way over a million people killed each single year around the world by that technology. Where was the concern for human life?
To anyone looking at it rationally, without emotion, it's clear that humans are not good at this task and that computers will eventually make roads safer than ever. The question is not if but when. Currently that data is debatable but some argue this point has already happened and cars with computer-assisted driving are already safer than those driven entirely by humans.