If the hobby develops its own subculture that poorly socialized children and manchildren base their entire identity around, and that subculture is incredibly reactionary and overall lame, then it is fair to shit on it.
Also even if gamers weren't reactionary people are still going to judge you for making consuming entertainment a hobby. Nobody considers watching TV a hobby, or scrolling tiktoks, or jerking off.
If shitting on gamers genuinely bothers you need to touch grass. Log off. Go outside.