If I had to guess, it's because gamers are often more tech-oriented, likely younger and impulsive, video games are more and more popular every year, and also based on your presence here, I'd say you're more likely to be aware of game-related news in general?

If knitting were more popular, had a greater online presence, and you actively followed knitting communities online, I'd imagine you would probably feel like knitting culture is such a toxic cesspit as well.