If you're stuck within such a group, you can wait your whole life for history to prove you right and still be disappointed - better to start planning your exit strategy.
It's actually not the ignorance per se, it's the self-confidence that comes from a mindset that allows you to believe things without evidence, or even in the face of contrary evidence. That sort of self-confidence can be very powerful (c.f. Donald Trump) but, of course, it can also be very dangerous.
Saying "don't worry, this group that currently holds power over large parts of the country only holds power currently, and only over large parts of the country" is not as reassuring as you probably meant it to be.
> Or wait until that group washes out into the irrelevance of history.
That's all fine and good on a geological scale, but we've been waiting 200+ years for the irrelevance of this particular group, and there's not a hope in sight of it happening any time soon.
