Most people who complain about how horrible the world is have never really had it hard. I don't care that you grew up in the ghetto. My grandma grew up listening to British bombers blasting crap all night, then seeing Russian dive bombers hitting a ship full of wounded men, and listening to them scream as it went down. I never hear her bitch about life and I never hear her gripe about God not stopping people from doing evil things that she saw with her very eyes.
When life really does suck, people always seem to either focus on the good or cut the talk and grab the Glock.