I must agree with you on several points here.
Racism has always been a problem, and apparently it always will - because no matter how far we have come or how many efforts we have made to mitigate differences betwixt the races, there will always be some kind of primordial trigger which says "You are different." - even if differences are only aesthetic, people tend to fear what they have not been readily exposed to or do not entirely understand. Withal, I do not condone racism in any way, shape, or form - and I think it's awful.
As for the games - statistically, violent games such as Grand Theft Auto tend to (most of the time) prevent violence instead of promote it. This is because us, as humans, have violent instincts. Video-games allow us to get those violent instincts out without actually hurting anyone - so games such as Grand Theft Auto definitely have a certain appeal when it comes to that aspect. Though I concur when you say that younger kids playing such a game is unacceptable, because it is. Parents should raise their child correctly, and not subject them to the horrors of the world at such an early age.
One problem which I find, like you said, is the media itself. Every day we are incessantly bombarded by commercials, television programs, and movies which tell us what to do, inform us what to buy, tell us how we should think or react, regale us with useless information on the lives of other people, tell us all of the awful things which are currently occurring in the world, incline us towards different fashions or mannerisms, et cetera. All of these things are things that people should come to a conclusion to by themselves, and without the incessant din of media shoving all of that information into their faces.
I also don't understand cruelty - why a person I don't even know feels the need to walk up to me and either chastise me or ridicule me when I've not harmed them a whit - but I suppose that's just the way the world is.
Anyways, that's my input. :3