I am so glad someone caught the reference - I wasn't sure if someone would. In his work, Nietzsche details the dismantling of fundamental moral values of society. The principles of how to live were being denigrated and I see the same thing happening now with progressive politics.
Younger children are being taught tribalism in the fight against 'racism' - this is the opposite of what progressives intend, but is still the corollary of their actions.
“Beware that, when fighting monsters, you yourself do not become a monster... for when you gaze long into the abyss. The abyss gazes also into you.”
― Friedrich W. Nietzsche