The people that truly believe this is going to happen are delusional. Really, literally, delusional.
The sovereign citizen movement is based on the premise that the law is like magic: all you have to do is mutter the right incantations and doors will open and your enemies will be vanquished. The Mike Spence actually did have the power to reject the electors was actually one of the more plausible, but completely theoretical, variants of this line of thinking (setting aside that it was also completely legally untenable.) The brief popularity of the quo warranto writs option for overturning the election was in the mainstream of this loopy line of thinking. Sovereign citizenry: legal analysis for morons