We are downplaying the link between video games and gun violence because it has been the subject of scientific study for decades now and no one has yet presented evidence of a causal link between the two.
I MIGHT be inclined to accept the theory that some target shooting games help would-be killers hone their marksmanship skills, but only if the game console had a full-size rifle style controller. And even then it wouldn’t be nearly as useful as a little time at an actual shooting range.