Taiwan, Philippines, and Vietnam are about as much of a threat to the PRC as Palestine is to Israel.
A better response would be that China hasn't started a war against them since them since it invaded Vietnam in the 70s, and it's small border wars with India are more mutual wars.
If you're instead advocating that Azerbaijan isn't attacking Armenia, sorry for the East Asia spiel, I'll go and be shocked by your position for a while.
While the PRC has, the US has done its fair share of rattling at them, too.
So it's more rattling back at the US by proxy.
(Though obviously the best way to weaken US power in East Asia would be to recognise Taiwanese independence and then slowly pull it back into orbit by geographical and cultural proximity.)