What's really embarassing is how many of them are full grown adults.
It's perfectly fine to be enthusiastic about your hobbies but you shouldn't define your life through your media consumption. You certainly shouldn't believe your preferred choice of entertainment makes you superior to other people.
Nerds can be pretty self-righteous and up their own ass. I mean, I recently read a post in one of the many Star Wars threads on Era saying people weren't ready for the first intelligent Star Wars film in regards to The Last Jedi.
lol
And for a "marginalized" group like self-described Gamers, they sure can be a bunch of judgemental, snide, vindictive, immature, hateful, sexist assholes.