Exterminate you fear from

Back in time, when humans were nothing but a less hairy ape lots of thing could scare the living crap out of this hopeless and defenceless creature. The apeman has no big fangs nor claws, didn't produce venom and wasn't the strongest or the fastest predator on the planet. Therefore he wanted to exterminate everything what was stronger, bigger, faster, smarter or more poisonous than his fucked up, insecure mind. He used every instrument to get rid of competitors. He used mimicry to mystify enemies. He joined force to kill the other living thing. He armed himself with tools and weapons. And when nothing was enough in a face to face combat he turned to the sneakiest bastard and put his stone axe into anything's back (or head) with ease.

Thousands of years later humans are no different. This fucked up, naked ape is the same sneaky bastard, if not worse. Women wearing high heels and push up bras to take an advantage to their competitors. Doing make up and wearing tricky clothes to look more attractive. Men are the same: 'If I'm small and weak I need big car and pumped up biceps or at least friends with same qualities. A big gun. I said BIG. Bigger. Oh, and more. Strenght in numbers.' If it doesn't work call the lawyers and hide behind stupid laws and paragraphs and kill (minimum perish) everybody and everything what crosses his path.
An example: there are parents, who are divorcing. If one of the parents fears from the other, for some stupid reason, than that divorcement is gonna be ugly. Because s/he wants to exterminate the other. S/he might think the kids love the other one more or they going to move to the other parent for good. Then war begins.

Can you imagine if human race met with aliens for real? They would kill the poor bastard before it could sneeze one on this planet. And this is sad. Thousands of years are gone and we didn't change a freckle. We couldn't overcome our fear, we couldn't strip of our primal survival instinct and see ourself from above, objectively. When we will realize that our own fear will kill us once not our fictional enemies?