If Muslims don't help each other nobody is going to come to help them. They are more than willing to kill their fellow Muslims than to defend their brothers in Palestine. These internal division in the Muslim world had led Israel and the US to corrupt their leaders, foment extremism instead of secularism and rational thinking, that has lead to weak and corrupt countries that are more interested in selfish agendas than progress as nations. Israel has just exploited these divisions and weakness to expand.
At the end the US, Israel and the Western power have make sure that instead of strong secular Afghanistan you have the Taliban, Libya and the same with Iran to a lesser degree. That is what the Western powers wanted, corrupt leaders, weak minded people, extremism, backwards countries in the most oil rich region and Muslims given to them in a silver plate to pursue selfish agendas.
Sadly there is not much China can do, even if they wanted and more less given the situation in Asia. What China can do is to push for more trade and investment, but to help someone is easier if that person put some effort to save itself.
