The original quote is never bring a knife to a gun fight.
But one of the comments on this Instapundit post on "Gamergate" notes:
If you don't understand that, ask your grandson what it means.
Apparantly the PC were trying to take over the gaming industry in the same way they took over science fiction (read Hoyt for her problems getting published) and a lot of academia.
But apparently gamers are fighting back, and even have dared to expose that those most vocal are hypocrites and have done naughty things in the past.
I am not a gamer, so haven't been following the fight, but the full article about the kerfuffle is here.