That is why we use the phrase "...describes itself as...". Therefore we give the organisation in question a chance to define themselves, and whether that definition is true can then be discussed in depth in the article, allowing the reader to make up his or her own mind.  
 It makes you guys' blood boil that someone is trying to inject a little fairness into the article, but it's important that Wikipedia is honest as it can be and is not just a platform for politically correct nincompoops.