If you want to see it that way. Gamergate was a movement with a handful of presumptions necessary to even logically believe in it, like thinking there was something fishy with games journos like Kotaku. The same way you can't be an atheist if you believe in god, no matter how you dance around it that is a requirement for that singular purpose.

But from there yes you can have all sorts of nonsensical and contradictory parties within because of the lack of definable rules. You've achieved the literal only basic rule (the same way the only rule about being black is literally being fucking black), and any discount from there is self-serving.

Point being, the move isn't "they aren't atheists" because they are just the same as anyone. Its that they are shitty people who did it for garbage reasons. And unfortunately for atheists, those make up the majority in both number and power in society.