Any person can get distracted and kill people in public. Most of the cars doesn't have distraction mechanisms like FSD Beta. e.g. if you're on the phone, FSD will not work. Lets ban people from roads according to your logic. FSD Beta killed 0 people since 1 year of program, humanity killed and made millions people injured due to human mistakes. Any Level 4-5 system deployed on a large scale with save millions of people, prevent even more people from been disabled in the future.