There are some good points on this topic, both for and against. I myself am a competitive gamer and have gone so far as to be sponsored by gaming companies. So, you can probably guess which side of the fence I am on when it comes to video games. I personally think the bigger issue is with society as a whole. Technology has made it possible for us to obtain every bit of information about someone, thus causing paranoia and contempt for our neighbors. The fact that now we can, in a few clicks of the mouse, find out just how many perverts there are in our neighborhoods and what they have done to deserve that title; makes all of us parents take notice. You as a parent have to take an active approach to knowing where your kids are at all times. And it has become a detriment to pick up games, in any sport!
It is true that, like anything else in life, if you do things in excess there are bound to be consequences. Eat a box of Twinkies every day for a year and you are bound to be a fat ass! Everything in moderation!