Boy Scouts would teach knife skills and knot-tying — both useful skills for kidnapping and torture — but I doubt you have similar misgivings about that. Making somebody competent at efficiency and rational decision-making under pressure doesn't make them a killer. Video games are not strongly correlated with homicide, that one data point 12 years ago notwithstanding.
(Incidentally, I'm not the downvote. I don't think your logic works here, but it's an interesting correlation.)
(Incidentally, I'm not the downvote. I don't think your logic works here, but it's an interesting correlation.)