He was trying to wind you up, and it also looks like he succeeded, as far as you going off to us to show us all the mean, stupid things he said.
As for what he was saying about gamers - about it being a low brow hobby for over-21 unemployed bachelors. As much as I'd like to tell him he's wrong, I'm an over-21 unemployed bachelor who plays games. My girlfriend is always telling me as much, so it strikes me that if I was going to take home anything from what this whole conversation, it would be that it wouldn't hurt for me to follow his advice and play games a little bit less.
As for what he was saying about gamers - about it being a low brow hobby for over-21 unemployed bachelors. As much as I'd like to tell him he's wrong, I'm an over-21 unemployed bachelor who plays games. My girlfriend is always telling me as much, so it strikes me that if I was going to take home anything from what this whole conversation, it would be that it wouldn't hurt for me to follow his advice and play games a little bit less.