I have thought about this subject in the past but not too deeply. How does one fall into this mode of susceptibility to conspiracy theories? Desperation? Hapless grasping of anything that engages the imagination? How does indulgence in extreme conspiracy scenarios provide one with relief? "just do it" Nike's motto comes to mind. Maybe it answers the restless need to find direction when you are lost in a situation. But why not come up with less extreme yet more plausible theories? Why go for the grossly negative one and not the mildly positive one?
It could be like the twisted (more or less is up to you) version of the blue pill, one of two that the character Morpheus offers to Neo to choose between. In this case though taking the blue one would be make-believing in a nightmare fantasy where your feelings of unfairness and injustice are clearly visible and allow you to express your outrage and frustrations. Quite sad if you ask me. I'd like to look further for research into this topic in the near future. Have you given in to paranoia lately?
