Look at classic games. They are full of blood and gore. But it is more real now. It's all over the screen. Look at that evil new game about slaughtering people in a mall. That is pure violence! Not for a story or game play. If you play that .. then you just love slaughtering people in games.
Take racing games. Tons of people just wanted to wreck the cars and go off of the track. Now we have games just for that. Burnout is cool. But that is violence. Wreck a bunch of cars in traffic on the road. That is violent. I am sure someone will make a copy game and toss in people and guts. Lots of blood. Little kids on fire in a school bus.
Yes, games are more violent.