> "There's an all-powerful, all-knowing entity watching everything you do and recording all your actions, and depending on that behavior you will be either rewarded with a post-life heavenly bliss, or a post-life eternal hellish punishment. A guaranteed way into heaven is absolute loyalty to your feudal lord and payment of a portion of your income to the church and its priests."
Yes, the original 'conspiracy theory' was religion. Just replace the supernatural entities with secret deep state cabals and black helicopters, or alien lizard-people and UFOs, it's basically the same kind of thinking.
Philosophically, there's no scientific way to disprove any of these theories, just as there's no way to disprove the notion that we're all living in a perfectly self-consistent VR simulation. Freedom of belief is also a human right, so whatever you want to imagine, go for it. (Note that believing that nothing exists until it is scientifically verified is also another of these belief systems, so don't start feeling superior, New Atheists).