You'd better stay away from Istanbul then, it's full of unspayed Socrates-es.

In seriousness, China's problem is not with all Muslims, it's with the Uighurs as a threat to their national integrity (especially in a region with such strategic importance, bordering Pakistan and India, and containing many railheads linking China to the rest of Eurasia). One of China's largest partners is Pakistan -- which is in its own words an Islamic republic -- and whose government generally turns a blind eye to what's happening in Xinjiang.