Complex questions have complex answers. In searching for answers, the first consideration actually is simple. None of us should have difficulty expressing sympathy for the family and friends of the woman killed by the lion or the boy killed by the alligator. Our compassion and understanding should parallel feelings we would have about someone who dies in a head-on collision, or in a hunting or drowning accident. But then the difficult part begins.
Automobiles can kill hundreds of people over a holiday weekend, and no one proposes banning cars.
Yet a single human death from an encounter with a wild animal leads to instant indictment of the individual animal. This generally leads to a demand for its life and sometimes all its kin. I think this has a biological basis. Outrage at another animal is a primitive response, but a natural one. Humans who were intolerant of aggressive animals probably survived better than those who were not.