bacteria, fungus, plants, protozoa, and (arguably) viruses are all alive, too. bed bugs. rattlesnakes. being alive isn't actually that special, nor a reason, in itself, to refrain from eating or killing that thing.
people should be treated differently than animals. doing so is necessary for right action. how we treat animals should have no bearing on how we treat each other.
bacteria, fungus, plants, protozoa, and (arguably) viruses are all alive, too. bed bugs. rattlesnakes. being alive isn't actually that special, nor a reason, in itself, to refrain from eating or killing that thing.