That makes the silly assumption that all organisms are equal. I'm sure we can all agree that a human's life is more valuable than a bacterium's. Or else you'd have to admit to genocide every time you use hand sanitizer.
It's an interesting point though - if we remove human life from the equation, how do you define the "value" of an animal or insect life?
It will even vary from culture to culture; for example, cows are revered in much of India, and in much of the west we seem to place more value on values we perceive as "cute", such as dolphins, or "magnificent", such as whales.
