Alexander's article (and others) attacking the word "gamers" miss the point. The point is not that "gamers" are all terrible human beings. the point is that "gamers" includes a subset of terrible human beings, who are often given passive cover by a much larger group that identify as "gamers".
Passive cover involves anything from ignoring them when they're online being misogynist, racist, douchebags to attempting to redirect every inclusion thread into a thread about themselves. Both of these are behaviors we see regularly on GAF. Multiple people in this very thread have said, "It's not my problem."
Well, yes it is if you take issue with the culture at large thinking we're all giant douchebags. All movements and groups contain offensive elements. How we deal with those elements often shows us what sort of group we're looking at. Do we embrace them? Do we pretend they aren't there, because it makes us uncomfortable to be associated with them? Do we call them out when they step outside the line?
Part of culture is creating acceptable social mores for groups. It's not that gamers are all terrible people -- I clearly don't believe that, given I've been a gamer for 35 years, moderate a gaming board, and have a ton of gamer friends -- it's that gamers don't do anything about the terrible people in their community, which makes it appear to outsiders that we approve.
A gedankenexperiment: On GAF, if someone starts a thread about how all Asian people are actually fifth columnists from China, what would you expect? If moderators left it up and no one got banned, what conclusion would you draw about GAF and the moderators? Many people would draw the conclusion that either we agree with the thread maker, or at least we don't find anything wrong with what he's saying, otherwise we would act upon it.
And that's what's happening here. Gamers's unwillingness to stand up to the extremists within their community makes it appear to people that we approve, or at least don't disapprove, of their actions. It allows shitbags to use the rest of us for cover. I'm not sure why so many people are upset about Alexander's attack on gamers, when the attacks of these people, the ones who threaten to kill in our names, are often ignored, or treated as the price of being involved in the industry.
When gamers routinely shut down these dickholes, gamers will start to be seen as something other than these dillholes. When someone's wife can get online to play a game without someone calling her a slut, or a whore, or weirdly a nigger or faggot, then people outside the industry may stop seeing gamers as misogynistic, racist, scum.
I hope people understand and act on this, rather than allowing themselves to get their feelings hurt over some journalists that swung too wide.