I don't play games myself but got the impression the gaming community can be a harsh one.
as a gamer myself... yeah, there are (sub) communities that are really toxic. Have you heard about the "Gamergate" controversy? Basically a misogynist/homophobic/transphobic crusade disguised as an "ethics in gaming journalism" movement, including online harassment, doxxing and other vile stuff.
Even beyond that low point of existence itself, it's hard to reason with fanboys. I mean, some of them care incredibly much about the critical score/rating a game receives they're willing to harass reviewers just because they didn't like some game the mob liked.
On the other hand, you've got gaming communities doing fundraising for charities, being welcoming and protective of "outsiders", others that champion diversity so on. So, in a nutshell, there's a lot of huge assholes in the world and a lot of them are gamers - but not all gamers are assholes.