Very cynical.
Idealism is amusing. "It will turn out alright!", "It will all work out in the end." Ha! The world changes according to the physical laws, not the needs of the human race - even less likely the needs of an individual human being.
Human beings can always be counted on to be stupid and ignorant - and boy do we suffer for it - as the complexity of the concepts and the amount of information the human brain can process is very limited in the grand scheme of things. As a collective/a group we have a "flaw" in which we are motivated more by the emotions of fear and anger then by rational thought.
Terrible and costly mistakes will be made. We have made a countless number of them since time immemorial and we will continue to do so.
We are also "selfish" in the sense that we are really no different from other animals in that we are completely controlled by our instincts. It's our instincts that drive us to do what we do, that define what our "end goals" are - which for the majority of the human race (barring mutations and change of "habitat" that result in those instinct not functioning "as intended") is to self-replicate; an instinct which we inherited from our predecessors (which they have to have possessed else we would not be here). Our more sophisticated brains are nothing more than a tool to that end. In the end, people will do whatever their instincts demand they do.
The world is an unfair and pitiless place.
For those of you going, "My life is going fine, I can't really complain too much.". Well, my life isn't. Personally I believe my life is more or less over. That my circumstances have made it impossible for me to fulfill my genetic imperatives, hence I'm more or less doom to a life of frustration and misery of which death will be the only relief.