The thing about Turkey and India is that they are middle powers that believes themselves to be something more. That makes them more belligerent to everyone, both US and China, but it also makes their national ego much more fractured.
They're not really enemies but cannot become allies either. However, they are *opportunities* that can be used. Perhaps right now, Turkey more so than India but you never know.
By steering clear of outright offending them (but of course responding to their territorial overreach with swift suppression, as China did against Turkish terrorism in Xinjiang), China can eventually align their oversized ambitions against America.
China's strength is that unlike US, it doesn't need a "new rules based order". It's government already directly rules as many people as US + EU together, only has slightly smaller economy than both together and has no need for colonial occupations, because friendly partner states provide all of China's resource needs.
That means that middle powers flexing their nationalism is not a threat to China, which has everything it needs at home, but it is a threat to America, which needs to retain it's status as the Fuhrer of the West and slavemaster of the third world.
As so, all flavors of national self determinism, eurosceptism, even Indian economic nationalism, should be stoked to a limited degree, because all these will step on Washington's toes, while China could care less about it.
