I mean absolutely no disrespect to you and I understand your feelings are probably coming straight out your heart. However I would like to point out that when you say that the world does not meet your expectation and that somehow is a problem with the world and not your own self is very arrogant.
> But we can't have it, because we are selfish and short-sighted monkeys.
These distasteful comments about fellow humans are nothing but the same arrogant thought process that has caused havoc around the world through ideologies like communism and colonialism. It reeks of Rudyard Kipling's disgusting poem "White man's burden". Without knowing you are claiming that you have the power to know what is good for world and you only need power to fix it. In this process you actually get depressed. You are describing the world as "Fuck all this."