How do people view such a s**tty world in a positive light?

I just don't understand how people still see good things in life when there are thousands of people dying every day for no good reason. Hell, the Georgia/Russia situation is a great example of that right now. There are people starving, being hurt, tortured, wars going on, innocent people going to jail (thanks to our lovely judicial system), discrimination, the fact that all our presidents have been biased for things like religion and biased against things like ity (not to mention the fact that the word 'god' is on our money) -- and yet we claim to be a "melting pot" of all kinds of different people. I'm sorry, but you have to be a pretty cold-hearted person to still see good things through all of that. I've stopped a long time ago.