One form of false righteousness is to claim that the enemy is insane, and therefore, one cannot reason with him and is "compelled" to attack him at the first opportunity for one's own security. People are usually zenophobic and insular and ignorant enough of others that they are easily convinced by such arguments about other people whom they will never know personally.

All civilian populations wish to survive, raise their children in peace, and live a good life. This is universally true. This is what your leaders do NOT want you to think about when they are planning to launch a war on someone.