the video is some what funny, but you're right GTA is just a game that leads towards a lot of violence which the world already has.
It's sort of funny, they could have made it funnier. I only liked the ending when they tell you what the board game includes. As for the 6 year old playing GTA, he shouldn't even be playing that game in the first place.
I've played GTA3 when I was 12, and I never ever done a violent thing. Played CS for many years now, and same with other first person shooters, and I still one of the most non-violent people in my area. It's poor parenting. If your parent's are going to buy you a game like that, make sure the kid is responsible. I find games like those relaxing, and a good way to take stress out. Though the drug's aren't a good example, but blowing stuff up is pretty fun. If people take it out of proportion, there are a few things wrong with the kid like stupidity, and mainstream things are causing it too like rap/gangsta music [ie: drugs/prostitutes/gangs].