Why are people the only ones who kill their own species out of spite, religion, and disagreement? Why do people manipulate and torture other fellow humans? Why are people building nuclear weapons? Why are people destroying nature as fast as possible? Why do people torture other animals for fun, fur, and food? Why do people feel that no other creature besides them matters?
Before you start saying that people are so much better than animals look what people are doing. All the animals and the planet would be 100 times better if people had never evolved.