Well, according to China, those waters are their territory, which means that the presence of foreign military vessels is an invasion.
Practically speaking, I think you could call that area a contested region, so minor skirmishes like this are expected and could escalate to war (like Crimea eventually did).
I think that the Philippines approach has been something like, ‘You can claim those waters if you want, but you can’t possibly keep us from entering them, so we’re just going to ignore you until you start killing our people, and then we’re gonna call in big brother America.’
What you see in the news and on social media doesn’t paint a true picture of what daily life is like here for people. Most of Trump’s supporters aren’t the hateful bigots that the Internet makes them out to be, they’re just convinced that he’s the lesser of the 2 evils. This is why you see that his rallies are empty and he’s still polling at ~47%.
Most of the deepest Trump cult fanatics live in communities where that is more prevalent, like rural Alabama, so if you don’t live where they live, you just don’t really encounter them. And if you do live in those areas, you’re already used to the rampant racism because it’s always been there.
So me and my immigrant wife will still go visit my pro-trump uncle for his annual pig roast, because he’s not a bad person, he’s just a moron. I’ll still call my conservative mother every week because she’s not threatening to kill me for voting blue, she’s just consumed too much anti-Kamala propaganda. My religious sister is still welcome to visit because even though she’s an idiot, my nieces are freakin adorable and I love them.