I hate people.

If I had a penny for every time I heard this...

Look. Life isn't always fair. There are good times, and hard times. What YOU need to do is simply get on with your life. Just because a set few people piss you off is no reason to hate all of humanity, and calling humanity a bunch of selfish people is a low blow.

Do you know everyone in the world? No one does. Most people hate "everyone" because they generalize everyone based on a few rotten apples.

My advice on the matter? Stop worrying. As you said. People are fighting over petty subjects. You're getting angry over petty results from the people you know. Continuing down this path will lead you to a life of secluded living.

Think about it for a while. Is it really THAT bad? Unless everyone you know and love is a mindless idiot that can't tell the difference between a pig and a cow, I seriously doubt humanity is that bad.

Jam it back in, in the dark.