While I don't object to the premise (and even find some validity to it, unseen worlds of which the general populace is ignorant/unaware), you're right, the execution sounds clumsy and perhaps condescending. If this were a reader's first UF novel, though, it might work on them. If the MC is still processing this new worldview when we as readers join the story, I can imagine that attitude from them (the MC), but then the rest of the novel would be hard to pull off with that as a starting point.

If you do manage to get through it I'd be interested to find out how it progresses.