Even in recent memory, Filipinos already had for sometime harbored a socially ingrained inclination to regard minorities and non-conformists in a judgmental and even prejudiced manner (we still consider it normal to use racial slurs against the Chinese, Indians, and African people among others even in polite company, for example and frown upon deviants and people who are, shall we say, 'creative' in their clothing fashion sense).
Perhaps modern attitudes are changing forcing us to make a conscious effort to suppress them, but the legacy sentiment and habits seem to emerge every now and then.
In response to:
"indayevarona: @benign0 interesting point, you raise there. Maybe I should research how pre-Spanish society treated gays or queers"