Using the whole prostitute murder thing as an example really only shows he hasn't properly researched the game. That's been recycled so many times its evident anyone who uses that as their sole damning evidence is simply basing their view on what they've heard rather than checking facts for themselves.
In other words, he doesn't WANT to do the right thing. He simply wants to have a go at games and will use any convenient fuel laying around.
It's saddening but not surprising that the people in power don't actually look into issues properly before charging ahead with their actions. I'm sure if he sat down and played the game, just for a while, he would realise there's more to it. And unless you specifically set out to find a prostitute to murder, you won't end up doing that.
It's the same as other aspects of politics. They're out of touch with regular citizens, because they just go off what they hear rather than trying to look into things personally.
Though I gotta say, going into the media and spamming the idea of murdering prostitutes with rifles is probably the best way of getting people to actually do it, in the games, which aren't banned yet after all.