The world and everything as you know works in a cycle.
Cycles are the way of life. They are the way of change, misfortune, and consequences, or, happiness, prosperity, and greatfulnes. The world and the universe is consistent with cycles that work over and over again for millions and billions of years. Cycles and mutations in cycles create adaptation, strength, understanding, and other phenomenons in species that allow them to achieve survival and more importantly reproduction. Cycles are the way of life but they have much importance to everything on this planet: Night and day, the kreb and protien cycles, the water cycle, it works for the biggest things and the tiniest things in the universe. Species have been around and survived way longer than humans, some will even continue to live longer than us. It is a natural misconception that humans have that we are the smartest and best adapted for this world.
We can all do what we can to be good people and good in society, but defining that is difficult. Some people think you have to have religion to be a good person, or to morally appreciate other people, but religion did create a sense of morality and was the guidestones to creating a peaceful state with laws and the idea of going to heaven and hell. That being said, we can see obvious discrepancies in the bible that are not moral and are very extreme, so by that it is in our nature to be evil and selfish, and kill and change, for your understanding of good or bad. The idea of a moralistic society can and has been debated for centuries. Free will and determinism, Faith, Education, destruction, and ideologies like these are what have changed society into a much more ethical and rational society. Today, believe it or not, we live in a much more peaceful, educated, clean, and technologically smart society. The media is the underlying factor that spreads hated, drama, and misconception in our society. Whether this is helping to ease the corruption, or only making people heated to the extreme to commit crimes of revenge, that is up to debate. Stay away from the media's dispicable perception of dogma, it will make you a happier person.
When you combined the concept of morality, like what is good and what is bad, what is ethical, what is irrational, you will get a million different responses and ideologies. This has been debated for centuries. Fortunately for most humans, and some other animals, we posses empathy and feelings. We attempt to save hundreds of species every year. There are a hundred different organizations that preserve wildlife and animals. There are also thousands of hunters, some are moral and some are sinful, against a law of code and ethics that people have created simply because they feel empathy for them, something we dont even know if other animals can feel. It is a cycle just like everything else. These people are free to do what they want despite the ultimate consequence, they are good or bad in their own minds, despite the laws against them. But nature doesnt care about good and evil. Nature doesn't have empahty or feelings. So we must fear it, and respect it, and adapt to it. We cannot chose which animals go extinct, we can only attempt to stop it from happining. But if they cannot adapt to survive in the world, the will inevitably go extinct. That is just they way of life.
The earth has been through 5 great extinctions. 5!!! In an instant, everything you know could be wiped away. There is no morality and no rationale to it. The earth is a powerful place. The only thing we can do is survive in it, adapt to live longer, and convince other people to have a moralistic ideals to preserve the peace we dream to concur in the world. It is a complicated world out there. If you just focus on yourself, forget the news, forget all the bad things people want you to know about, and just worry about what's going on around you. You will be much happier as a human being on this planet.