You don't know what you're talking about. All Asians back each other in sports, it's ****ing annoying.
i don't know about chinese people though. there's also this matter of china and the philippines going through a pretty tense stand off regarding some chain of islands in the area, plus some incidents between the philippines and hong kong and taiwan, that i saw somewhere filipinos are among the most hated group among chinese ethnic groups. not surprised they hate pacquiao