China is been sensible and pragmatic as well. They have Xinjiang available as a teaching tool for now and when they know how to win, only then will they entertain foreign adventures. This is all pretty sensible and is also taking advantage of the depth of time available.
It is obvious the threat will never be a real threat to anyone's sovereignty but it will be extremely annoying unless it is tamed. That is why i have opened the door to separating women and children for a proper education on western lines. China is quite capable of doing just that. If it works , then they will apply this elsewhere.
Then, just where do you start? The best place is the Sahel in Africa because we have a replacement religion instantly available. What China has is the immediate manpower to do it at the scale needed. It is also big enough to put all Islam on immediate notice that the game is up. In fact the sudden de Nazification of the Islamic Sahel followed by direct conversion to Christianity in a short space on time would end radical Islam then and there as they have no answer in meaningful action or threats..
China’s contribution to the international military assault on Islamic State targets, however, is a timid offer of “intelligence sharing and personnel training” by Foreign Minister Wang Yi.