Why does evil always win?

[Möbius]

Sadly enough we were never given the chance. Since the dawn of mankind, before any great civilization, this world was already hardcoded with a system of predator and prey.
I like to observe nature, from the first glance it is beautiful, but when you look into the details it becomes so brutal and heartless.
My believe is that there are sectors of this galaxy that are peaceful and humanity just got the short end of the stick.
From the time of hunters and gatherers to the first civilizations and up until now, nothing in human nature and essence has changed.
The STS beings that made it all worse just participated in the madness this sphere already was in.