Yeah, stereotypes are a bitch. BUT - if one gets stereotyped enough, after a while s/he’s probably developed some coping mechanism to actually leverage it into an advantage (I know I do). So don’t feel too bad - it might well be that the guy uses that sort of conversation precisely to gauge his audience.

(It makes a lot of sense that pro athletes are in gaming, btw: it’s competitive and it’s something that can be done during long downtimes between training sessions, or lonely hotel nights away from home. If you follow any twitter feed of pros, from football to f1, sooner or later you’ll see plenty of posts about games.)