You're describing collectivism thought. Everyone shares an identity and as such everyone needs to participate. This only can happen on one side, the other side

You're describing collectivism thought. Everyone shares an identity and as such everyone needs to participate. This only can happen on one side, the other side believes in individual choices that aggregate to a greater good so long as everyone is responsible in their own choices. So yeah that is how the extremes go about it, and it seems to have been successful to some extent in social media (apparently by who the current big platforms are).