as for "why even try" ? there is no sense in trying to hype people up for battle if you can't tell them who the enemy is. when most people find out the truth they no longer want to fight.
people are so stupid they expect evil to wear a sign saying " i am evil, please destroy me " ... but real evil hides behind children like Greta Thunberg or Anne Frank.
all real evil is disguised as good.
the real battle is internal - to recognize what evil actually is. it isn't a step that can be skipped.