I'm a bit torn on this. I don't think anyone should be made fun of for their hobbies as a rule.
As for myself, I've definitely been a isolationist gamer. I mostly enjoyed single-player games and RPGs and didn't have many co-op experiences growing up. I of course enjoyed the time I spent with my games, and they definitely helped me out in dealing with other trauma going on. But since they were the simplest method to escape for me, it was easy to get lost in them, and totally ignore the growing issues with my social development, which is still in the shitter.
It's not the games fault though. It's not even the "marketing's" fault really. I've always had a type of game I enjoy and I'll do my own research and such on it and that will be why I anticipate the game. I honestly cannot recall actually paying any serious attention to any real marketing campaign that impacted my desire for a game at any notable level.
I mean, there's no guarantee that if I hadn't latched onto gaming, I wouldn't have latched onto something else that was just as isolating like simply watching TV (which I also did) or maybe diving more into books or comics/manga/anime. So I don't think it's that fair when gamers seem to get the worst rap compared to other hobbies that are out there that are just as isolating or not physically healthy. People who sit all day watching daytime TV don't seem to get as much vitriol as gamers do after all.
I suppose I wish that I could have somehow found a way to turn gaming into something more social for me. But even what little I've seen of others, some of them go far off the deep end even for my tastes (and a lot of them tend to have nasty personalities too)