While saving the life of a young child from the Islamic State is certainly cause for celebration, lets not get too embroiled in embracing the Yazidi culture.  Yazidis (not unlike the worlds other religions) are chock full of messed up messages for children who are brainwashed from a young age into medievalism.  Elements of these religious cultures are massively xenophobic, abhorrently ignorant of science and reason, and ultimately destructive to our well being.  Celebrate the life, but never be afraid to scrutinize the culture.