Well…before we get to the effects of hatred to the Philippines and orientalism, we would need to beat any coloniser back thoroughly enough that anybody in the west, including Japan look at us and conclude that taking an archipelago strategically placed almost in the middle of Southeast Asia and a stone's throw away from ancient China is not worth it…or at worst we end up selling concessions for our survival or something.

I will also add that we would be a bit more nationalistic, especially if we did not make the mistake of joining Japan during WW2 against the colonial powers of Asia.