Doesn't impact China.
Not too worried about Xinjiang ISIS. The intel apparatus not to mention military strength gap is far too large for them to pose a threat.This is no laughing matter. You writing them as "Uighur terrorists" in parenthesis shows how disingenuous you are. These are actual terrorists who have killed thousands of people in China. They have also killed Chinese tourists in Bangkok in 2015. These people are killing Syrians today, and they will try to kill Chinese tomorrow.
No. China will never feed the snakes who desires to establish an extremist Caliphate on Chinese lands and murder Chinese people. If the terrorists win in Syria, they are coming after Russia, Iran, Central Asia, and China. China does not directly support Syria. Instead, it is helping to keep the economies of Russia and Iran running, who are in turn, supporting Syria directly.
How do you think ISIS can enter China to begin with? It's the taliban being complicit. But we have found moderate taliban who are ready to open up the country to China now. As long as whatever caliphate preferentially fucks US, it will be an usable partner. Americans and Zionists have huge egos and will not tolerate their pet kurds being raped and publicly beheaded as is going on already by these savage HTS cavemen. Once these powder kegs set off eachother, they will be at least slightly useful.
Imo the most important thing bar none is that China (and Russia) doesn't throw all its weight behind a lame duck leadership that doesn't embody their people's wishes (not saying Assad necessarily is). That's the same way US lost Iran permanently.
The Syrian govt has been through worse in 2012, back when Russia was a lot weaker too. But politics change and people can get tired.