That’s not weakness my friend. Ok, now to answer your questions. “I” don’t kill bacteria, it’s my wife’s job to clean. Hah. I don’t go out of my way to kill ants. But I will when they’re fire ants. And why the hell would I kill cats and dogs? Again, I don’t think life has to be precious universally to be considered a precious life. Even the worst of us have a mother.