>1. Jan 6th conspiracies among Republicans allow the holder to avoid unpleasant facts about Trump or some of his supporters. These would be difficult to reconcile with their worldview but conspiracy theories provide a way out. Claims about voting help them too.

This is true of the other side as well, but to differing degrees and in differing ways, and the interest levels in the truth seem very similar.

Not to worry though, pre-planted memes (subconscious heuristics that control reality perception) to the rescue: "both sides", "false equivalency", etc.

Humans are a very interesting species - so much potential, but trapped in a self-reinforcing cycle of wilfull delusion and silliness.