There’s no way they aren’t simply undiagnosed schizophrenics.

The breakdown of reasoning and rationality is there, the wild leaps. From there is neuroplasticity: the more they practice having such thoughts, they pave their neural pathways deeper and deeper, make the thoughts more reflexive until that’s all that’s left.

These people start off joking around with conspiracies, they literally give themselves schizoaffective disorders from being too ignorant and gullible to meet a conspiracy they can’t be tricked by. They learn to just think this way.