I'm a native speaker of English. As such, I am licensed to exploit lexico-morphological convention for expressive intent. I could have used 'anti-civilization', 'acivilization', 'Harlem-like', 'Compton-like', or infinitely many other rhetorical, neologisitic flourishes.
Re the nomadic tribes of which you so ignorantly speak, they kidnapped, raped, enslaved, and killed each other like Gazans on holiday.
In addition to slicing out the hearts of victims and spilling their blood on temple altars, the Aztecs likely also practiced a form of ritual cannibalism.