Sounds like common sense to me. But you can't argue for views like that in polite society - you'll be howled down by a crowd of people who believe the doctrine of "herd immunity" applies to leaky vaccines that wear off after three months.
Empirically, everyone would say that their worldview is accurate, including conspiracy theorists. An interesting question is: who is actually correct (if we were to examine each given situation in detail using strict logic and epistemology)?
> I don't know a single person who's into just one conspiracy theory. It's either none or the whole package.
I know plenty who are into only some - in fact I am one of them, and I'd be happy to answer any questions you may have.
And if not, then who are we to criticize members of X for being into things for which they do not have supporting evidence?
Look at the thinking on display in this thread - if we abstract it above the object (topic) level, would we not discover that all people think like conspiracy theorists, if perhaps to a lesser degree? Does anyone care whether all the things they believe to be true are actually true?
And, since we have little if any measurements on the matter, what shall we make of the substantial percentage of mainstream beliefs that members of group X are(!) worse than normal people? It is an artifact of people's imaginations, as are the beliefs of members of group X - and, each group laughs at the stupidity of the other, day after day, year after year - an infinite loop.
Imagine if we programmed computers the way we think about the world, what a mess that would be.
It doesn't seem to me to be much of a stretch to state that people who espouse the flat earth theory also espouse other conspiracy-theory views as well. What exactly, if anything, makes that difficult to believe for you?