The way the documentary approaches the subject is simplistic but not necessarily stupid. Although many of us would spend a lot of time on games you need a sense of balance regarding on how you spend your time.
Case in point,
Because I am an adept to Ludendorff philosophy about the concept of total war, I dedicate some of my time on weightlifting, boxing with kickboxing and thaiboxing variations, also I started flirting with fencing and once every few months I enjoy reading books on military strategy or wars history, the total amount of time would be around 5-10% out of 24.
So I would definitively not use all my time on videogames, and the traits I am involved into would absolutely give me specific qualities around the leitmotif of videogames in question. Because
Since I am much involved in mental and physical preparedness in and around wars and violence to me the media entertainment based solely on violent traits does not look like something out of the ordinary like experiencing in the virtual world what I could not in real life so because this I tend to look beyond these aspects, I am looking for the cultural or the educative pattern (war wise or historical or European wise) instead -this is why I would like movies like Napoleon by Abel Gance from 1927, but I couldn't watch more than 15 minutes political correctness movies with George Clooney who would cluelessly condemn war, based on leftist propaganda, or this is why I see Overwatch like a silly interpretation on the abstractization of war, regardless the amount of sucker action and violence involved. Thanks to the education of war I can also easily spot the suckers in Hollywood movies where ordinary people mistakenly see heroes. Today Hollywood movies revolving around violence and wars are mostly clueless, thanks to the continuous anti-war propaganda and the pussiefication of the general population, so taking care of yourself and getting yourself prepared for war would certainly immunize you to the attractive (and humane) aspect of cheap violence. This would not completely render you absent on the field of virtual battles but would certainly make you ready to get a better taste on such things and would certainly make you able to detach yourself from the screen easier than usual.
Although I am into violent videogames and movies as well, thanks to real life war education and training the virtual experiences could not take over, as I am carefully putting and choosing cultural matters above the brute idea of cheap entertainment.
Anyway the idea that gamers are suckers is valid to the extend that the players are not involved in real life experiences who would resemble (and after all, lead) the violent or competitive traits in videogames, and this idea deserves more ample discussions and observations.