I'm watching this and I don't know if I want to bother watching passed the starting bits. I'm already unimpressed by the extent he is trying to equate killing in a war or hunting context to combat scenarios in a videogame. You can't actually kill/murder/cause harm in a videogame because nothing is alive and nothing dies. All the more true that you can't kill "someone" or even an animal. He goes as far to highlight that shooting a gun is a physically impacting activity, but skips over the fact you don't actually fire guns while playing a videogame, not even when you are holding a "light-gun" or a wiimote or move controller accessory. Most obvious shit in the world.
Games do try to create the illusion of someone being alive and someone dying from gunfire, but he is starting from the position that is something along the lines of "Can you believe we swing at so many baseballs with bats like it was nothing? My granddad remembers every man he's beaten to death with a baseball bat. Makes you think/blows your mind/would be a good line for a TED talk!" I guess I could see how he may take this and use it to reach where we would get with a more sensible position (the complete reverse of what he is saying: we begin disassociated with violence in games, and they become more personal and real as we add in more realistic, shocking themes - these themes may be as pleasing as they may be horrifying (but not by much since videogames are still highly unrealistic) and there you have some discussion, especially on execution), but it is such a profoundly stupid position to begin from that I just want to dismiss it completely. The summary sounds like it could be interesting though.