Anger, hopelessness, despair, panic, rage and other "dark" emotions can hijack our nervous systems whenever we are overwhelmed. Those who have struggled with betrayal trauma know this territory all too well.
Overwhelm can come due to a new discovery about our mates' secretive sexual behaviors, it can overtake us when we witness a natural disaster such as an earthquake, widfire or hurricane or it can be due to a political system in distress or transition, as what just happened here in the United States as well as recently in Britain.
I think it's worth taking note of, that no matter which half of the country (USA) one currently feels aligned with, that still leaves roughly half the population that is angry, feels resentful, disappointed, etc. In other words, there is a lot of activation in the environment, regardless of whether your side "won" or not, or whether you participated in voting or not.
The difficult fact is, we now live in a super-charged climate that has the ability to dysregulate our emotional systems whenever we have to interact with the outside world.
So how do we do that without insisting on isolating ourselves inside our own tribe of like-minded others?