“The term Filipino can only refer to a segment of our people who bowed in submission to the might of Spain. Certainly, the Muslims do not fall under the category of Filipino…because the word Filipino was derived from or at least named in honor of King Felipe II, for whom the Philippines was named after. The name or term Fillipino can only be applied, therefore, to those who were once subjects of Spain. In so far as the Muslims are concerned, the appellation Filipino does not have any meaning for them. That is the reason why they resent the idea of being called Filipinos.” – Alunan C. Glang

A good book to pick up on this and where I got the above quote from is called Bangsamoro: A Nation Under Endless Tyranny”.