There is no tactful way to tell humanistic dudes that their dreams will not come true.
Not because I understand enough what humanistic dudes philosophizing about to draw a correct conclusion. But because I understand the how.
The thing about paranoia is you only collect “evidence” for the narrative you already picked out to be the one. Paranoid guys/gals keep those smug attitudes that others are too sheep to see the big picture. But, as opposed to being paranoid trusting no one all the while thinking they themselves have no vice, healthy skepticism includes the ability to self-criticize. And that's just the opposite of making grand promises.