The natural world is full of unimaginable cruelty. Wolves will take down young deer and eat them alive while parents watch. Bears will pin down whatever they can catch and who cares if it is alive. On and on, the amount of bloodshed required to support an omnivore/carnivore is simply bananas. Killer whales are hyper-intelligent aquatic nightmares, imho, that thankfully have not decided to eat humans.
We, humans, made the following bargain with nature, at least until recently: We will drive away the predators that keep you in constant alert and savage your children, and in exchange we will determine how and when you die (quickly, but perhaps also fearfully).
I agree - we can carefully manage the wilderness for our own benefit, and that may take away the randomized killings. But there is _no_ version of a carnivore or meat-eating omnivore that does not involve killing and savagery and disregard for the life that has been reduced to just a link in the grass-to-meat or plankton-to-meat foodchain.
I've come to terms with that and continue to eat meat.