We shall unleash the Nihilists and the atheists...
Good luck getting anything even remotely unified out of those types.
You might as well threaten to "unleash" the "independently-minded-free-thinkers!!"
In a battle of brute force, I'll take 1 Zealot over 100 Anarchists.
And Nihilists? Have you ever tried to organize and or unify Nihilists?
Their entire identity screams "I do what I want!"
Exactly why they unleashed them :)
You might as well threaten to "unleash" a horde of adult-sized infants.
Haha yes, and they might go around destroying civilization!
And How!