At this point you aren't even arguing against watchmen, you're arguing against any fictional story that involves any sort of international conspiracy.
Classic X-Files is one of my favorite shows. The conspiracy there is vast and powerful, featuring all kinds of crazy shit like memory erasure, cloning, shape-shifting assassins, and the whole thing is organized by an alien FTL civilization. And it still leaks more than Veidt's does.
Of course part of this is because the X-Files is basically a nonsense setting where every urban legend and conspiracy theory is straight up true. But it never tries to sell itself as anything else, so you can't fault the consistency. So no, I'm not ragging on conspiracies as such, I'm ragging on Enron times 10,000 except super-stable and competent because... uh... smart?
You accuse me of hating comics for not being 100% realistic when that was never even my issue, but you're doing the same thing to watchmen.
Im just taking you at your word, my guy. My thesis is that Watchmen is very similar to the genre exercises you affect to hate, given thay you're the one who went so far afield to draw a distinction between it and the rest of its parent genre.
'super-genius jars with the realism the setting strives for and therefore shouldn't be used to create this profound unprecedented thing by one 6,000IQ person' don't hold water. Because Adrian doesn't do that. He IS a genius, maybe IS the world's smartest man. But he doesn't come up with all this himself or overnight. He has numerous leading experts in their own fields and lays the ground work with public efforts such as the Institute for Dimensional Research.
Its a problem of degree, not kind. What Moore is trying to sell the audience on is "a strong man can bench press a V8 block, so this character, as the world's strongest man, can bench press a locomotive." Just like with the psionics thing, this breaks out one of two ways:
1. Veidt pulls out of his ass entire fields of science so advanced that it can fool the collective capacity of the rest of world, or;
2. Veidt flawlessly puppet-masters an Illuminati-esque conspiracy that includes black-bagging half of MIT and DARPA that, over the course of a decade, advances multiple fields of science to a degree that can fool the collective capacity of the rest of the world and successfully disappears all of the evidence and participants.
Both of these are, in a word, fucking impossible. The intelligence required to get within a country mile of either would make Doctor Doom look like Forrest Gump, especially from a notional non-super. While I wouldn't mind this normally, a book that affects being "realistic" and "grounded" can't invoke such genre conventions, especially as it conspicuously removes them from other facets of the story. It's as
@wtfNeedSignUp said, a mirage of realism that appears and disappears at the author's convenience.
The potential synthesis, I suppose, is that Veidt isn't particularly smart but everyone else in the Watchmen universe is pants-on-head retarded. Lex Luthor even mentions this in
Doomsday Clock- "if you're the smartest man in your universe, I'd hate to see the dumbest." Game of Thrones has this problem too, where the "dark" tone and the author's need to constantly showcase man's inhumanity to man has the cumulative effect of making the world operate by sociopathic retard logic.
If I'm making a mountain out of a molehill, its because the mole in question is the size of a skyscraper.
"if this were a thing then we MUST see widespread or advanced use of it elsewhere"
No one's said this except you. What I said, repeatedly, is that even a decent working theory about psionics (which are a real, quantifiable, observable thing) would be enough to demystify the squid and dispel the illusion Veidt is attempting to create. You don't need to know how to build an implosion lens to understand what it is.