The big picture: Facebook has little interest in taking sides, and would prefer to continue providing a playing field on which both right and left vie for attention, buy its ads, and feed its profits.

But the creators of, and participants in, conservatives’ alternate media reality look increasingly unwilling to keep playing that game.

The bitterer the post-election fight becomes, the more likely it is that Facebook will be forced to choose between becoming the Fox News of social networks — or watching as someone else builds it.

Our thought bubble: Facebook and social media have been criticized for allowing users to build their own echo chambers and filter bubbles where they only communicate with like-minded people.

But the dissatisfaction with these platforms right now comes from people who no longer want to share the same social space with their political opponents.