Why do people abuse animals? Because they enjoy hurting other things, but they can’t do it on a human because of social standards. They intentionally hurt animals because it makes them feel empowered and just a sadist in general. If they could hurt another human being and get away with it, they probably would. Animals are the easiest helpless target. There is that need to feel in control over others. Hurting the animals give the people control over the animals. Some simply enjoy the pain and violence of it. If you know anyone who does this, do not ostracise them, get them to a psychologist or a therapy. This kind of act is usually born out growing up in a toxic environment or brain damage in some case. Get help for them early.