> When I play online games, in this example PUBG, I think a part of the fun is to be rude and aggressive before the match starts. You're about to virtually shoot them in the head so saying something rude to random online gamers doesn't feel at all bad.

You're right about how in some context trash talk is expected & part of the game, but maybe it'd be better to play games in which one doesn't practise insulting, mocking & killing others. Maybe it'd be better to play games which encourage our better virtues rather than our worse vices. Maybe the world would be a better place if we pretended to love one another rather than hate one another.