I mean why do the most humans wants to save the life of other humans they don't know. And don't talk about all humans in the world but about the most. Why do humans wants to help humans with disabilities. It takes more work to teach humans with disabilities (and I mean mental disabilities) that humans without disabilities. And these humans would never be so productive that other humans. And also humans with strong physical disabilities (e.g. humans they can't see and hear both). And why do humans donate their blood or their organs to save the life of other humans they don't even know? What are the advantaged to try to save every single life. Can a society of humans also work with only humans they have worth for the society? Why do a society needs homeless peoples? Why do a society needs peoples with strong disabilities?
And an other point is the environment. Why is it okay to kill animals and exploit the planet? When a humans kills an other humans the murderer will also killed or goes into the prison for the rest of his life. But when a human kills an animals in nearly any cases nothing happens. In all countries in which no death penalty exists a murderer of a human would go into the prison. But when an animal kills a human the animal has to be killed. And an animal kills no human because of fun or because the animal to bored. But humans does. So why can the human life and the animal must die?
All I wrote is just my opinion. Please write when you have another opinion and explain why.