I don't think religious paleoconservative-types like NJ Christian and Chuck Baldwin (I assume this is the kind of person you're talking about) are that skeptical or questioning about everything, just organizations and institutions that their ideology causes them to distrust, like the UN, the Federal government, multinational corporations, etc.
Also, Agenda 21 and REAL ID are undeniably real.
So in other words, religion is generally the reason that these conspiracy theorists question those institutions rather than something which exists outside the purview of their political ideology?
I mean, I suppose that was obvious, but it also seems rather disingenuous that one would question just about everything involving some form of hierarchy with the exception of religious dogma.* I don't come across many paleocons who've cooked up a bunch of inordinate theories about Christianity or their churches.
I think we are talking mainly about an evangelical religious tradition that has been historically been somewhat suspect of religious hierarchy (as opposed to dogma, which is believed to come directly from God), and suspect of Catholicism especially. All the old conspiracies that labeled the Catholic church as "anti-Christ" have been transferred to the UN and like organizations, the idea being of an organization that set itself up against God as a false idol, that is simultaneously a threat to American sovereignty and freedom.