You couldn't possibly be more wrong. In Europe in the Middle Ages, one of the leading causes of death was by bear, wolf, boar or other wild animal attack. And less than 100 years ago, Indian tigers were still killing and eating a thousand people a year -- often small children, snatched directly from their homes. Even smaller animals such as foxes, stoats, weasels, civets, deer -- could indirectly cause death through malnourishment and even starvation through herd predation and crop destruction. Insect infestations were once so feared for their ability to destroy crops that they were considered deadly plagues from God himself.
The entire reason you have plenty of food and free time today to sling a backpack and safely roam through the "nurturing trails of nature" today is because of how much of the original wildlife we've killed.