All of east Asia will probably align themselves with China sooner or later.
If the Philippines allows China to build military bases there, then you can almost write it all off.
The PI POTUS probably decided to get what he could, not a bad call.
The US is down to 297 ships, only about 200 of which have any offensive capability. And only about 105 of those are in the Pacific fleet.
They are extraordinarily capable platforms...but they can't be everywhere.
This move is likely in the best interests of the PI, but the people there love America, with a few million relatives here now.
And that a political problem for Duterte.