1) One thing to keep in mind is that religion is usually only the backdrop for some geopolitical issues. Yes, ISIS was an Islamist movement, but it was first and foremost opportunists seizing a vacuum of power in Iraq, and the instability in Syria, to put themselves into power. When looked at through that lens, why would a Muslim in Morocco or Algeria or Indonesia care that much about ISIS? Does a Catholic in Rome feel intimately connected to violence in Mexico? Most of them thought ISIS were a bunch of assholes, but it wasn't happening in their backyard.
2) Another thing is again politics. It's good for Arab leaders to criticize Israel and blame it for their problems. (Most of them) don't need Israel for anything. They rely more in China. That's the same reason most Western countries are falling short of accusing China of genocide.
3) From a purely religious point of view, Jerusalem/Al-Quds is a very important religious site Islam. It's the direction they originally faced when they prayed (Mohammed moved it to Mecca later), and is the location from which Mohammed ascended to heaven in one of his visions. China has no religious value.