Do you have children? Your lack of pathos suggests that you do not.
You can use statistics to argue for a lot of things, but to suggest that school children being murdered in class is 'no big deal' because we need self driving cars is being almost laughably callous.
I do, 2 teenagers. And I know that driving is far more dangerous for them than attending school.
EDIT: If anyone here has children and are more worried about them being shot in school than you are about them sitting in the seat of a moving automobile you are insane, completely 100% insane. I'm sorry if that sounds callous, but it is true.
Many think this way, but rather than being insane, I think they are simply "moist robots" responding to stimuli and memes in a predictable fashion, just as we all are.