*shrugs* I think the main issue is that mass media tends to ignore the fact that a video game rating of "M" is the same as a movie rating of "R" while (and this is prompted by something that irritated me in that youtube link) an "AO" rating is the equivalent of NC-17/XXX. Unfortunately, this failure results in parents not equating the two and expecting an "M" game to adhere to the restrictions of a "PG-13" movie...though, really, if you pay attention, what is a PG-13 rating today would frequently have resulted in an R rating 10 or 20 years ago...
The bottom line is, most people wouldn't be aghast if they were to walk away from their computer, travel to a theater right now and sit down to an R-rated film and find that at some point in the movie there were bare breasts, an exposed posterior, or a flacid penis. And while the majority of complaint as to why such things are more damaging in a video game seems to hinge on the interactivity of the experience, it's worth noting that in nearly every case of video game fornication, it's NOT interactive, and rather frequently not too much more titilating than what you might see on a daytime soap opera, or a primetime drama.
Further, when I see a study that states the harmful effects of video games, has been repeated at least 3 times with consistant results, and doesn't get discredited within a few weeks or months, I MIGHT believe it, though I'll be willing to admit the anecdotal evidence of my life and the lives of every other gamer I've ever met leads to a strong prejudice against such studies.
Hrmm....rambling....should stop....basically: Censorship bad. ESRB rating system not taken seriously and not accepted nearly as well as the MPAA's. Slightly ironic that video games get a lot of heat for what's commonplace in other media.