Evil tempts us with our weakness, with our desire for comfort, being comfortable, cautious, rational, civilised. What kind of civilisation are we fighting for, if we allow war crimes and genocide again? What kind of world are we leaving for our children and grandchildren if we only talk of the past and the future while ignoring murder and misery in the present?
This is not chess. This is not a battle between opposite colors, but of opposite values. Freedom, life and love versus tyranny, death and hatred.