Fake theories are much worse than fake facts because people make sense of facts using theories.
But modern mainstream theories - whether in science, law, medicine, religion, politics or the mass media - do not deserve the name of theories - they are so small, so specific... let's call them micro-models.
Micro-models are the sound-bites of theory which we get everywhere. Each serves mere to fake-explain some tiny sliver of facts - and there is no possibility, no attempt, and no requirement that these micro-models should add-up to anything more.
In fact, if you even try to add them up - or to point out that they cannot be added up - you will be ignored, mocked or attacked (according to the perceived importance).
Micro-models replace understanding - their special quality is that they do not allow understanding. They operate everywhere - they are the norm not the exception.
And - with the best will in the world (which is, anyway, lacking) micro-models cannot be added-up to anything bigger, cannot be made sense of... they are dots which cannot ever under any circumstances be joined to make something greater.
Micro-models are, indeed, perfect mechanisms for demonic activity: a fake understanding of fake problems which makes no sense and cannot lead to either understanding of life or purpose in life: in sum - the perfect mechanism for inducing helpless despair in all matters across the whole population!
Moral: Metaphysics - the examination of our fundamental assumptions regarding the basic nature of reality, and the creation of theories of the utmost generality - is the single most neglected yet urgent subject of our era.
Note: See 'micro-specialisms' in science, as an example: