Animals are simple property
This is an issue that is a major problem in western civilization, too often are animals humanized and thus people think they relate to them so they give them rights similar to a human. Here are some simple points as to why animals have zero rights.
Firstly I will ask a question: is nailing a cat to a door a crime?
- Nailing a cat to a door is not a crime because laws are meant to protect humans from humans, in the case of a cat nailed to a door then no human is getting injured. However is the individual was to nail a cat to a door in a public setting then it could be seen as upsetting the peace. But if the individual does this it in private he can not be charged with anything a as he is free to do what he likes. Why should we spend money to arrest and imprison an individual who hurts animals? By taking this human out of society we are eliminating a productive human out of society. Sure the cat will feel pain but animals do not even feel pain like we do, and who cares is the cat suffers I don't care if the cutest cat ever is suffering the most horrible pain the universe can create, it is not human and we shouldn't care about it as a species. If you want to go ahead light your dog on fire I wouldn't care or judge, it is the same as lighting a tree on fire (except this 'tree' screams). This is why cats and other animals are undeserving of rights and humans are. Nailing a cat to a door is not a crime.
Second point animals are simple entities and thus are the same as rocks. Animals do not have the ability to ration or sustain a society. By definition they are not even conscious. They serve no purpose to society. So laws are in place to protect humans and society, if this dog poses a direct threat to a human it should be eliminated no question. Because they fail at all task that society throws at them then animals have no rights and are only entities that can support themselves (but due to the rock cycle animals are no better). What separates us from them is our ability to create an advancing society and our ability to ration. Until another species can appoint their own representative then I will not care about them and I will continue to be for their torture. Still this does not give an individual the permission to hurt another individuals property (or animals) because they do not own it.
Third let's not confuse a single animal from an ecosystem. An ecosystem serves many purposes to humanity and thus should be supported by law. An ecosystem provides the planet with oxygen and water two vital aspects of life. However your common dog does nothing to the environment so it has no rights.