Humans by nature are good. Really?

Describing good acts by humane indicates that human by nature are good. How arrogant of us humans to claim this.

I argue that humans by nature are not good. In fact can they can not be good, otherwise they would not have disgustingly populated the beautiful planet of Earth. They were able to do by eliminating the good elements among them. From time to time these good elements pop out from left out genes, only to be destroyed by lacking the defence mechanism to protect themselves from the overwhelmingly evil majority.

So, trekking over the millennia, humanity perfected the art of evil doing and disregard for the welfare of others. That explains wars, and the common selfish behaviour. Order is only possible by the sword of law hanging over heads. This applies everywhere. Only when resources are abundant and law is strict that people behave nicely to each other.