Competition in gaming is fine, but only if the participants think it's fair. It feels to me like it's increasingly unfair.
But in relation it jerks, there seem to be many more same-team jerks than in the past. Teammate blame seems to be at an all time high. It's always someone else fault that we lost, never my own. Oftentimes you read the stats afterwards and the performance was basically equal. I can't help but feel that this same perspective is spilling into real life too.