It's not irrational paranoia to believe your government operates as a separate entity, one that is not subject to the rule of law. From the Iraq war, to torture, to retroactively legal bulk collection, to immunity granted to telecoms for doing illegal surveillance, to no one going to jail in response to 2008, the list goes on and on.
We have a government all too happy to throw millions of us in jail for the most minor of offenses, yet the same rules don't appear to apply to the people constantly on our TV screens or ones that aren't with enough connections.
HRC is not the devil, but she represents something deeply unsavory to a lot of Americans on both sides of the political spectrum.
Trump is an obvious mad man. The fact that so many people are willing to give such a man the ability to unilaterally destroy humanity speaks volumes about where western civilization is at right now.
For Trump, it's completely different. His strategy is built on two pillars - exposing the existence of the corrupt system and presenting himself as somebody who can fix it. The second part, unfortunately, is completely false and that's where alternative reality comes in - he needs to paint himself as somebody capable of doing a thing he has no idea how to do and no capability to do. That's why he always proposes over the top things - to capture one's imagination and paint himself as somebody who can do things. The proposal itself does not matter, neither the facts he claims to base it on - what matters is the image of somebody who knows how to do things, and has the guts to do them. Since the reality of his capabilities is rather modest, constant stream of fiction is required to keep this idea alive.