From what I've saw of them this may be true of some people flying the GamerGate flag but there are people who are vociferously ethics only who don't like all of the identity politics crosstalk.
This is perhaps informative (unless one believes that the majority of the respondents are being disingenuous) http://gamepolitics.com/2015/0...
"I asked my first question, “What is GamerGate?” because that will be asked at the upcoming SPJ AirPlay discussion on August 15 and I wanted to compare answers."
"Their top-voted response explained, “GamerGate is a movement dedicated to fighting for ethics in (gaming) journalism and against censorship and the politicization of (gaming) media and games. It arose after several corruption scandals in the gaming media, attacks on the gamer identity and attempts by the gaming media and ‘cultural critics’ to force a political ideology down the throats of gamers.”"
I guess that there is a chance that a much larger group of people (including international Gamergaters?) that agree with your analysis missed Brad Glasgow's questions but assuming this isn't the case the group consensus seems to be focused on ethics.
Ultimately I accept that people are drawn to the group for different reasons but I think it's reasonable, if one is going to generalise, to look at the majority opinion and use it as a basis of describing the group.