This essay explains what the root injustice is that keeps allowing for tyranny, and how we can fully remove it from the ground of our society:
https://colindonoghue.wordpress.com/2014/05/16/the-root-injustice-a-real-way-forward-to-a-sustainable-society/
Please read with an open mind and share if you find it quality.
Colin D. Donoghue