In India, the caste system is very inconvenient. You have to die and get reincarnated before you can either move up or move down the caste. There's hope if you believe in reincarnation, but what if you don't? In the Spanish times here in the Philippines, it wasn't as rigid as it was in India, and your children can inherit a different class when you marry a foreigner. Although being reincarnated to a different class should work fine too.
With a working caste system, it is just normal that discrimination exists. This system defined the lifestyle of many individuals in the Philippines, as well as opportunities in education, occupation and marriage. For a few hundred years in the Spanish territories, this has been the case. Note that the use of "Filipino" here refers to natives of the Philippines. The following are the classes and their differences: