Stable societies fundamentally require increasingly large energy inputs. What we're seeing happening right now, in a large part, is due to a system whose complexity has exceed the available energy required to sustain it.

The idea that what we're seeing is because "too many people voted for the wrong guy" fails to recognize the larger condition for which all of this is merely emergent phenomena. We no longer have the resources to sustain the society we life in so it begins to uncomfortably revert to lower energy states in ways we haven't seen in a long time.

But be prepared for the society you live in to vote for an obviously, significantly destabilising leader...

Some societies can be stable for a while, but all of them eventually become unstable, collapse, and make room for new ones.

Further more, know your neighbors, join mutual aid groups, build social connections before bad things happen. The idea of a single prepper surviving the apocalypse is a farce, humans work in communities.

Care to name any examples?

That's like saying "Everyone be friendly and helpful to one another"

Easier said than done