"what does stallman think gamers are like?"

He doesn't care, and likely has never given a single iota of thought to it, as he assumes what is best is to think like him.

And dear RMS acolytes who will almost certainly bristle at this statement; I spent enough time around him and his satellites in the 90s/oughts, to feel quite comfortable saying this. He has near zero interest (and I would argue the capacity) to try to understand what drives other people, just the self-righteous purity of his own views.