“Person: But those people are going to die anyway according to Hashem’s Will.”
You: It is also Hashems will that we do everything we can to live safe and healthy lives. If it Hashems will a person dies in a traffic fatality, no matter how safe it is Hashems will, ill prevail. If it is Hashems will that a person not die, then it doesnt matter if they are at the opening of the gas chamber, they will not die, unless they deliberately place themselves there. We are responsible to deal with the things in our control, which includes reasonable precautions to lead safe lives, after that, Daven.