Multi-culturalism prevents Teachers and Administrators from being critical of the Islamic Culture in Textbooks. If a 50 year old man marries a nine year old girl, that is OK because that is their culture.  And besides, Muhammad did it, so that makes it acceptable.  Having four wives is also OK because it is cultural, and besides, Muhammad had nine wives and 23 concubines.  Oh, by the way, none of this is mentioned in any of the textbooks.  A Multi-culturalists never dares to be accused of being a cultural bigot. Truth is a low value card in the deck of the multiculturalist.